Australian Asphalt Pavement Association
2018 National Proficiency Testing
Round
Version: 1.2
Prepared by:
Norbert Michel
17 October 2019
Page | 2 AAPA Proficiency 2018 v1.2
Contents
1.0 INTRODUCTION..................................................................................................................................... 3
2.0 STATISTICS DEFINITIONS .................................................................................................................. 3
3.0 DETAILS OF THE AAPA 2018 PROFICIENCY ROUND ................................................................... 3
3.1 TEST STREAMS ........................................................................................................................................... 3
3.2 SAMPLE DISTRIBUTION ............................................................................................................................... 4
3.3 HOMOGENEITY TESTING.............................................................................................................................. 4
ASPHALT SAMPLES ................................................................................................................................................... 4
AGGREGATE SAMPLES ............................................................................................................................................. 5
3.4 TEST METHODS APPLIED ............................................................................................................................. 5
4.0 STATISTICAL ANALYSIS SUMMARY ................................................................................................ 7
4.1 MEDIAN AND NORMALISED IQR .................................................................................................................. 7
5.0 ORDERED Z-SCORE CHARTS AND OUTLIERS .............................................................................. 9
5.1 SUMMARY OF RESULTS ............................................................................................................................... 9
5.2 DETAILED RESULTS FOR EACH REPORTED PARAMETER .......................................................................... 11
6.0 REFERENCES .................................................................................................................................... 121
7.0 APPENDIX A TEST INSTRUCTIONS .............................................................................................. 122
Disclaimer
Although the information in this report is believed to be correct at the time of printing, the Australian Asphalt
Pavement Association, and agents of that organisation together with individuals involved in the preparation of this
report do not accept any contractual, tortious or other form of liability for its contents or any consequences arising
from its use. People using the information contained in this report should apply, and rely upon, their own skills and
judgement to the particular issue they are considering.
Suggestions for improvements in the proficiency testing program are welcome, please forward suggestions to the
AAPA offices using the contact details provided at aapa.asn.au.
Page | 3 AAPA Proficiency 2018 v1.2
1.0 INTRODUCTION
The Australian Asphalt Pavement Association (AAPA) and its members have been organising proficiency testing
rounds since 2004. The 2018 AAPA Proficiency round was a national undertaking, providing all AAPA members and
stakeholders the opportunity to be part of the drive to continually improve consistency and confidence in test results in
our industry.
For the 2018 round, samples of loose asphalt mix were prepared by Downer in Victoria. Aggregate samples were
prepared by Topcoat Asphalt in South Australia. AAPA acknowledges the efforts of these organisations as they have
been key in the success of the 2018 AAPA Proficiency Testing Round. AAPA would like to also acknowledge and
thank ARRB and Boral for their assistance with rationalising and adjusting the test method instructions for Stream 4
following the theft of samples from the Port Melbourne office, which resulted in a second batch of samples being
required to undertake the complete suite of testing required in this proficiency testing round.
The analysis in this report is limited to the statistical presentation of the data for laboratory proficiency assessment.
Results are reported in a similar format to that of earlier AAPA proficiency testing rounds and other proficiency testing
schemes. The design of the proficiency testing round and the analysis of the data follows the guidance in the Guide to
Proficiency Testing Australia (PTA, 2016) and EN ISO/IEC 17043:2010.
The data of AAPA Proficiency testing is also used to investigate the suitability of test methods, quality control and
product acceptance procedures. Outcomes of such investigations are reported separately.
2.0 STATISTICS DEFINITIONS
Statistical definitions and concepts used in this report include:
No. data = Number of results / data for the test / sample
Median = Median of the results / data (middle value in the set of results)
NormIQR = Normalised interquartile range of the results / data
calculation: 0.7413 x (Quartile 3 – Quartile 1)
RobustCV = Robust coefficient of variation %
calculation: 100 x NormIQR / Median
U of Med = Uncertainty of the median (robust estimate of the standard deviation of the median)
calculation: ��� � �����√� where N = No. data
Min = lowest value result / data
Max = highest value result / data
Range = difference between Max and Min
STD = standard deviation of the results / data
z-score = normalised value providing a “score” to the result / data
calculation: (result – median)/normIQR
Refer to “Guide to Proficiency Testing Australia 2016” in references for further detail and explanation.
3.0 DETAILS OF THE AAPA 2018 PROFICIENCY ROUND
3.1 Test Streams
The 2018 AAPA Proficiency Testing Round included the following test streams:
1. Asphalt testing (tests related to asphalt product acceptance)
2. Binder recovery
3. Aggregate and filler tests
4. Resilient modulus
5. Wheel tracking test
6. Moisture sensitivity: Tensile strength ratio (TSR)
Page | 4 AAPA Proficiency 2018 v1.2
3.2 Sample Distribution
Samples were distributed to all participating laboratories from across Australia and New Zealand based on the range
of tests that they registered to participate in. Table 1 provides an overview of the sample distribution for the different
streams of the AAPA Proficiency testing Round for 2018. Each participating laboratory was issued a unique
identification number for the purpose of reporting the results anonymously.
Table 1: Sample distribution Proficiency 2018
Test Stream Registrations Samples distributed Results received Response rate
1. Asphalt testing 51 113 105 93%
2. Binder recovery 14 18 13 72%
3. Coarse aggregate 30 50 49 98%
4. Resilient modulus 16 19 15 79%
5. Wheel tracking 12 13 11 85%
6. Moisture sensitivity 15 18 15 83%
For testing under Stream 1 and Stream 2, containers containing 8 to 10kg of loose asphalt mix were sent to the
participating laboratories. The asphalt mix type used was an AC14 with C320 binder. The asphalt was produced as a
single batch in a batch plant. The mixing time of the pugmill was increased to optimise homogeneity. An additional tin
of bitumen sample was sent to those laboratories who participated in Stream 2 – Binder Recovery (binder extraction
tests), in combination with the asphalt samples.
For the testing under Stream 3, laboratories were sent a bag with 20 to 25 kg of aggregate with a nominal maximum
particle size of 4.75 mm. Each bag had a unique sample number.
Due to the theft of samples from the AAPA offices before they could all be sent out to participating laboratories; a
second batch of asphalt mix was required to undertake the remaining test streams. Downer Victoria was again
requested to prepare these samples in the same manner as the samples prepared for Streams 1 and 2, however this
time larger sample tins were sourced, and each tin weighed approximately 10 to 12kg. Therefore Streams 4, 5 and 6
were all undertaken on the second batch of asphalt mix that was supplied and subsequently sent out to the participants.
To ensure that sufficient material was available to the labs to undertake these tests, for Stream 5 laboratories were
provided with 3 tins for each test the registered to undertake and for Stream 6 laboratories were sent 2 tins for each
test that they registered to participate in.
3.3 Homogeneity testing
Asphalt samples
For the first batch of asphalt supplied to AAPA, ten asphalt sample containers were randomly selected and tested for
homogeneity in accordance with AS2891.3.3. The tests were performed by a single experienced operator. The results
are shown in Table 2.
Table 2: Homogeneity tests asphalt samples for the first batch of samples
As outlined previously, due to the theft of proficiency testing samples from the AAPA offices in Port Melbourne, a
second batch of asphalt was requested of Downer to complete the testing program. For the second batch of asphalt
supplied to AAPA, six asphalt sample containers were randomly selected and tested for homogeneity in accordance
with AS2891.3.3. The tests were performed by a single experienced operator. The results of the homogeneity testing
undertaken on this second batch of samples are presented in Table 3.
1 2 3 4 5 6 7 8 9 10 Average StDev Median
4.9 4.9 5.0 4.8 5.1 5.0 5.0 5.1 4.9 5.0 5.0 0.09 4.965
13.2mm Sieve 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 0.00 100
9.5mm Sieve 98.0 98.0 98.0 97.0 98.0 98.0 98.0 99.0 98.0 98.0 98.0 0.47 98
6.7mm Sieve 81.0 82.0 84.0 78.0 83.0 83.0 81.0 84.0 87.0 82.0 82.5 2.37 82.5
4.75mm Sieve 67.0 66.0 67.0 63.0 69.0 68.0 65.0 71.0 76.0 70.0 68.2 3.61 67.5
2.36mm Sieve 44.0 44.0 44.0 43.0 48.0 46.0 43.0 51.0 52.0 48.0 46.3 3.30 45
1.18mm Sieve 29.0 29.0 30.0 30.0 32.0 30.0 30.0 34.0 34.0 32.0 31.0 1.89 30
0.600mm Sieve 20.0 20.0 20.0 20.0 22.0 21.0 20.0 24.0 24.0 22.0 21.3 1.64 20.5
0.300mm Sieve 13.0 13.0 13.0 13.0 14.0 14.0 14.0 15.0 15.0 14.0 13.8 0.79 14
0.150mm Sieve 8.3 8.5 8.4 8.3 8.5 8.5 8.3 8.8 8.7 8.4 8.5 0.17 8.45
0.075mm Sieve 5.9 6.1 5.9 5.8 5.8 6.0 5.9 5.9 6.2 6.1 6.0 0.13 5.9
Bitumen Content & Grading AS2891.3.3
Homogeneity Testing #1
Perc
enta
ge p
assin
g s
ieve s
ize
Page | 5 AAPA Proficiency 2018 v1.2
Table 3: Homogeneity tests asphalt samples for the second batch of samples
Aggregate Samples
The homogeneity of the aggregate samples was tested on ten randomly selected samples. Aggregate density tests on
the fine aggregate were performed in accordance with AS1141.5. The results for tests on the aggregate are shown in
Table 4.
Table 4: Grading, particle density and water absorption homogeneity results
Analysis of this homogeneity testing data indicated that the materials were sufficiently homogeneous for the program.
The variability in the samples is similar to that of previous proficiency testing rounds. Therefore, any participant results
identified as outliers cannot be attributed to material variability.
3.4 Test methods applied
Table 5 shows the tests performed under each proficiency test stream and the corresponding test methods to be applied
to report the results. This report contains the outcomes for these proficiency test streams. The test instructions that
were sent to the participating laboratories for each of the test streams are included in Appendix A.
1 2 3 4 5 6 Average StDev Median
5.11 4.85 4.99 5.06 5.15 5.1 5.0 0.11 5.08
13.2mm Sieve 100 100 100 100 100 100 100.0 0.00 100
9.5mm Sieve 97 96 95 97 96 97 96.3 0.82 96.5
6.7mm Sieve 82 76 76 80 81 79 79.0 2.53 79.5
4.75mm Sieve 65 59 59 63 65 64 62.5 2.81 63.5
2.36mm Sieve 43 40 39 42 43 44 41.8 1.94 42.5
1.18mm Sieve 29 27 26 28 29 29 28.0 1.26 28.5
0.600mm Sieve 19 19 18 19 20 20 19.2 0.75 19
0.300mm Sieve 13 13 12 12 13 13 12.7 0.52 13
0.150mm Sieve 8.3 7.9 7.8 7.8 8.2 7.9 8.0 0.21 7.9
0.075mm Sieve 5.9 5.6 5.7 5.5 5.8 5.5 5.7 0.16 5.65
Homogeneity Testing #2
Bitumen Content & Grading AS2891.3.3
Perc
enta
ge p
assin
g s
ieve s
ize
Sample
Number16mm 13.2mm 9.5mm 6.7mm 4.75mm 2.36mm 1.18mm 0.075mm
App.
Particle
Density
Dry
Particle
Density
SSD
Particle
Density
Water
Absorption
X-583-1 100 94.81 8.38 0.6 0.37 0.25 0.24 0.18 2.69 2.62 2.65 1.02
X-583-10 100 95.6 8.43 1.19 0.47 0.32 0.31 0.15 2.69 2.61 2.64 1.14
X-583-2 100 95.82 10.07 1.19 0.55 0.39 0.33 0.06 2.69 2.62 2.64 1.05
X-583-3 100 95.27 8.1 0.35 0.3 0.26 0.25 0.14 2.69 2.62 2.65 1.06
X-583-4 100 94.95 10.56 1.55 0.6 0.31 0.3 0.15 2.69 2.61 2.64 1.12
X-583-5 100 93.88 7.83 0.6 0.33 0.32 0.32 0.14 2.69 2.61 2.64 1.11
X-583-6 100 96.11 8.2 0.7 0.3 0.26 0.21 0.08 2.69 2.61 2.64 1.12
X-583-7 100 95.05 9.19 0.77 0.31 0.3 0.3 0.13 2.69 2.61 2.64 1.05
X-583-8 100 95.19 7.76 0.53 0.37 0.33 0.28 0.16 2.69 2.62 2.65 1.01
X-583-9 100 94.51 8.44 0.54 0.27 0.24 0.23 0.09 2.69 2.62 2.64 1.08
Average 100 95.12 8.70 0.80 0.39 0.30 0.28 0.13 2.69 2.62 2.64 1.08
StDev 0.00 0.65 0.95 0.38 0.11 0.05 0.04 0.04 0.00 0.01 0.00 0.05
Median 100 95.12 8.405 0.65 0.35 0.305 0.29 0.14 2.69 2.615 2.64 1.07
Page | 6 AAPA Proficiency 2018 v1.2
Table 5: Proposed test methods to be adopted for the 2018 Proficiency testing round
1. Asphalt testing
2. Binder recovery
3. Aggregate and filler
4. Resilient modulus
5. Wheel tracking
6. Moisture (TSR)
Tests Bitumen content and grading AS/NZS 2891.3.1, or AS/NZS 2891.3.3
Binder extraction AGPT/T191, ASTM D5404, or ASTM D1856
Particle density and water absorption AS1141.6.1, or AS1141.6.2
AS/NZS 2891.13.1(1)
AGPT/T231 AGPT-T232(1)
Max density AS/NZS 2891.7.1
Viscosity of binder using Dynamic Shear Rheometer (DSR) AGPT/T192
Particle size distribution AS1141.11.1
Marshall compaction AS/NZS 2891.5
Capillary Viscosity at AS/NZS 2341.2
Average least dimension (ALD) nominal 10 mm and greater direct measurement AS1141.20.1
Marshall stability and flow AS/NZS 2891.5
Average least dimension (ALD) Calculation by nomograph AS1141.20.3
Gyratory compaction AS/NZS 2891.2.2
Flakiness index AS1141.15
Bulk density (Presaturation) AS/NZS 2891.9.2
Notes: (1) or local equivalent test method where laboratory is not NATA accredited for the specified Australian Standard test
Table 6 provides a summary of the range of actual test methods applied to generate the results provided by participating
labs for each of the test streams.
Table 6: Summary table of actual test methods applied during 2018 proficiency testing round
1. Asphalt testing
2. Binder recovery
3. Aggregate and filler
4. Resilient modulus
5. Wheel tracking
6. Moisture (TSR)
Tests Bitumen content and grading AS/NZS 2891.3.1 AS/NZS 2891.3.2 AS/NZS 2891.3.3 In House DOW-ITM 01-01 QTMR Q308A
Binder extraction AGPT/T191, ASTM D5404, or ASTM D1856
Particle density and water absorption AS 1141.6.1 AS 1141.6.2 ASTM C127-2015
AS/NZS 2891.13.1(1)
AGPT/T231 AGPT-T232(1)
Page | 7 AAPA Proficiency 2018 v1.2
Max density AS 2891.7.3 AS/NZS 2891.7.1 AS2891.7.3 ASTM D2041/D2041M 2011
Viscosity of binder using Dynamic Shear Rheometer (DSR) AGPT/T192
Particle size distribution AS1141.11.1 NZS 4407:2015 Test 3.8.2
Marshall compaction AS/NZS 2891.5 AS2891.9.2 ASTM 6926 – 2010 Q305
Capillary Viscosity at AS/NZS 2341.2
Average least dimension (ALD) nominal 10 mm and greater direct measurement AS1141.20 AS1141.20.1 NZS 4407:2015 Test 3.13
Marshall stability and flow AS/NZS 2891.5 ASTM D6927 – 2015 Q305
Average least dimension (ALD) Calculation by nomograph AS1141.20.3 NZS 4407:2015 Test 3.18 Q202
Gyratory compaction AS/NZS 2891.2.2
Flakiness index AS1141.15 Q202
Bulk density (Presaturation) AS/NZS 2891.9.2 (pre-saturation) Q306B
4.0 STATISTICAL ANALYSIS SUMMARY
The comparison of sample testing is based on the “robust statistical approach” using z-scores to assess the distance
of the given sample result from the median. Z-scores close to zero approach the median with increasing values
indicating increasing divergence from the median. Sample results with values of |z-score| >= to 3 are considered to be
outliers and should be rejected while |z-score| >2 should be investigated for their high divergence from the median.
4.1 Median and normalised IQR
Table 7 shows summary statistics for the results submitted by participating laboratories. The median and normalised
IQR are used in the determination of the z-score for each individual submitted result, calculation: (result –
median)/normIQR.
Table 7: Statistical summary of test results
Test No. of Results Median Normalised
IQR
1. ASPHALT
Binder Content (%) 108 5.0 0.1
Grading / Percentage passing 19.0 mm 111 100.0 0.0
Grading / Percentage passing 13.2 mm 111 100.0 0.0
Grading / Percentage passing 9.5 mm 111 97.3 0.8
Grading / Percentage passing 6.7 mm 111 80.3 2.4
Grading / Percentage passing 4.75 mm 111 64.2 3.1
Grading / Percentage passing 2.36 mm 111 43.0 4.0
Grading / Percentage passing 1.18 mm 111 28.8 2.3
Grading / Percentage passing 0.60 mm 111 20.0 1.4
Grading / Percentage passing 0.30 mm 111 13.0 0.7
Page | 8 AAPA Proficiency 2018 v1.2
Grading / Percentage passing 0.150 mm 111 8.2 0.4
Grading / Percentage passing 0.075 mm 111 6.0 0.3
Maximum Density, average of duplicate test (t/m3) 200 2.625 0.01
Compacted Density – Marshall - 50 blow, average of duplicate test (t/m3)
140 2.425 0.02
Compacted height Marshall specimens – average of duplicate tests
130 64 1.48
Stability – Marshall (kN) – average of duplicate tests 122 10.4 2.30
Flow – Marshall (mm) – average of duplicate tests 122 2.9 0.67
Compacted Density – Gyratory – 80 cycles, average of duplicate test (t/m3)
100 2.4105 0.03
2. BINDER RECOVERY
Extracted Binder:
Average of duplicate complex viscosity results (η*) 10 1246 246
Optional: Capillary viscosity at 60 ⁰C 5 1212 541
Bitumen Sample:
Average of duplicate complex viscosity results (η*) 11 206 20
Capillary viscosity at 60 ⁰C 12 197 7
3. COARSE AGGREGATE
Particle Density – Apparent (t/m3) 36 2.698 0.008
Particle Density – Dry Aggregate (t/m3) 36 2.630 0.006
Particle Density – Saturated Surface Dry (t/m3) 36 2.655 0.007
Water Absorption (%) 36 0.975 0.076
Grading / Percentage passing 26.5 mm 53 100 0.000
Grading / Percentage passing 19.0 mm 53 100 0.000
Grading / Percentage passing 13.2 mm 53 93 2.520
Grading / Percentage passing 9.5 mm 53 7.4 1.927
Grading / Percentage passing 6.7 mm 53 0.9 0.297
Grading / Percentage passing 4.75 mm 53 0.6 0.222
Grading / Percentage passing 2.36 mm 53 0.5 0.222
Grading / Percentage passing 0.075 mm 53 0.4 0.222
Average least dimension by direct measurement (nominal 10mm and greater)
20 9.4 0.148
Average least dimension by calculation nomograph 28 9.7 0.241
Flakiness index 39 4 1.371
4. RESILIENT MODULUS
Maximum density results used for test - average 36 2.578 0.002
Compacted density – average of 3 samples 54 2.5025 0.039
Air voids of compacted specimens – average of 3 samples 54 2.85 1.464
Compacted height – average of 3 samples 54 65 1.26021
Diameter of specimens – average of 3 samples 54 100 0.1483
Resilient Modulus (MPa) - average 18 5406 823.214
Resilient Modulus (MPa) – coefficient of variation 18 1.325 0.523
5. WHEEL TRACKING
Maximum density of loose mix - average Given value
Compacted density of slabs - average 24 2.455 0.020
Slab thickness - average 24 50 0.000
Final tracking depth - average 24 3.2 0.927
Central steady state tracking rate - average 24 0.08 0.082
Average steady state tracking rate - average 24 0.08 0.082
6. MOISTURE SENSITIVITY (TSR)
Maximum density of loose mix Given value
Average compacted bulk density – unconditioned 63 2.374 0.011
Average compacted bulk density – conditioned 63 2.371 0.01
Average compacted height – unconditioned 63 64.57 0.8
Average compacted height – conditioned 63 64.7 0.9
Average degree of saturation for vacuum saturated specimens 63 67.4 7.4
Average swell of moisture conditioned specimens 45 0.3 0.3
Page | 9 AAPA Proficiency 2018 v1.2
Average tensile strength – unconditioned 63 1088 154
Average tensile strength – conditioned 63 991 132
Tensile strength ratio 21 90 4
5.0 ORDERED Z-SCORE CHARTS AND OUTLIERS
5.1 Summary of results
This section contains the charts of z-scores for each individual result submitted. The interpretation of the z-scores is as
follows:
|z-score| smaller than 2.0 indicates satisfactory performance. No action required.
|z-score| between 2.0 and 3.0 indicates questionable performance. Laboratories should review their results to
investigate divergence from the median
|z-score| exceeding 3.0 indicates unsatisfactory performance. Laboratory to investigate result and
consideration should be given to redoing the test.
A summary of all |z-score| results between 2.0 and 3.0 and outliers exceeding 3. is provided in Table 8. Participating
laboratories can track their results by means of the (confidential) LAB ID and the sample number (where this was
supplied in the webform results).
Table 8: Summary of large divergence and outliers
Test Z-score >=|3.0| LAB ID [sample]
|2.0| < Z-score < |3.0| LAB ID [sample]
1. ASPHALT
Binder Content (%) L014[214], L050[160], L048[229], L049[88]
L023[39], L023[46], L029[191], L013[236], L001[125]
Grading / Percentage passing 19.0 mm
Grading / Percentage passing 13.2 mm
Grading / Percentage passing 9.5 mm L020[45] L048[233], L011[129], L001[105]
Grading / Percentage passing 6.7 mm L020[45], L053[144] L021[203]
Grading / Percentage passing 4.75 mm L020[45] L050[253], L053[144], L011[196]
Grading / Percentage passing 2.36 mm L020[45]
Grading / Percentage passing 1.18 mm L026[137], L020[45] L012[154], L003[7472634]
Grading / Percentage passing 0.60 mm L026[137], L020[45], L056[68], L003[7472634]
L053[144], L024[126], L005[#167], L012[154], L056[206], L049[88]
Grading / Percentage passing 0.30 mm
L026[137], L020[45], L056[68], L024[126], L003[7472634], L056[206]
L005[#167], L049[88]
Grading / Percentage passing 0.150 mm
L026[137], L056[68], L024[126], L005[#167], L003[7472634], L056[206]
L047[239], L017[59], L049[88]
Grading / Percentage passing 0.075 mm
L026[137], L056[68], L024[126], L005[#167], L003[7472634], L056[206], L027[134]
L016[240], L005[#176], L038[223], L001[105], L001[125], L001[190]
Maximum Density, average of duplicate test (t/m3)
L041[237], L024[187], L005[#167], L048[233], L027[130]
L054-A[H19.048.ASP], L054-B[H19-049-ASP], L020[23], L042[42], L056[7], L012[133], L006[106], L042[228], L049[88]
Compacted Density – Marshall - 50 blow, average of duplicate test (t/m3)
L041[237], L048[230], L048[229] L022[147]
Compacted height Marshall specimens – average of duplicate tests
L023[202], L012[127], L057[143], L012[72], L012[75], L042[228]
Stability – Marshall (kN) – average of duplicate tests
Flow – Marshall (mm) – average of duplicate tests
L026[137], L049[88]
Compacted Density – Gyratory – 80 cycles, average of duplicate test (t/m3)
L022[147], L049[88]
L022[234], L022[197], L022[217], L013[236], L056[206], L018[19], L018[19], L001[190]
2. BINDER RECOVERY
Page | 10 AAPA Proficiency 2018 v1.2
Extracted Binder:
Average of duplicate complex viscosity results (η*)
L025[208]
Optional: Capillary viscosity at 60 ⁰C
Bitumen Sample:
Average of duplicate complex viscosity results (η*)
L015[232] L015[184]
Capillary viscosity at 60 ⁰C
3. COARSE AGGREGATE
Particle Density – Apparent (t/m3) L012-5[], L027[] L005[]
Particle Density – Dry Aggregate (t/m3) L038[], L012-5[], L027[] L133[], L034[], L012-3[], L012-4[]
Particle Density – Saturated Surface Dry (t/m3)
L005[], L012-5[], L027[] L010[], L010[]
Water Absorption (%) L027[] L013[], L013[], L159[], L133[], L011[], L012-4[], L012-9[]
Average least dimension by direct measurement (nominal 10mm and greater)
L005[], L045[] L159[], L034[], L012-9[]
Grading / Percentage passing 26.5 mm
Grading / Percentage passing 19.0 mm
Grading / Percentage passing 13.2 mm L003[], L004[], L004[] L013[], L031[], L133[], L012-4[], L027[]
Grading / Percentage passing 9.5 mm
L010[], L021-1[], L006[], L007[], L008[], L003[], L010[], L031[], L004[], L027[], L010[], L004[]
L159[], L012-9[]
Grading / Percentage passing 6.7 mm
L010[], L021-1[], L006[], L007[], L008[], L003[], L010[], L031[], L004[], L027[], L010[]
Grading / Percentage passing 4.75 mm
L010[], L021-1[], L006[], L007[], L008[], L003[], L010[], L031[], L004[], L027[], L010[]
Grading / Percentage passing 2.36 mm
L010[], L021-1[], L006[], L007[], L008[], L003[], L010[], L031[], L027[], L010[]
L002[], L009[]
Grading / Percentage passing 0.075 mm
L010[], L021-1[], L006[], L007[], L008[], L003[], L010[], L031[], L010[]
L002[], L027[]
Average least dimension by calculation nomograph
L154[] L013[]
Flakiness index L001[], L021-1[]
4. RESILIENT MODULUS
Maximum density results used for test - average
L038[83], L001[15] L022[67]
Compacted density – average of 3 samples
L022[67]
Air voids of compacted specimens – average of 3 samples
L001[15] L022[67]
Compacted height – average of 3 samples L022[67]
Diameter of specimens – average of 3 samples
L011[40], L022[67], L005[26]
Resilient Modulus (MPa) L022[67]
Resilient Modulus (MPa) – coefficient of variation
L035[87] L039[39]
5. WHEEL TRACKING
Maximum density of loose mix - average Given Value
Compacted density of slabs - average L040[5,77], L039[55,64]
Slab thickness - average
Final tracking depth - average L001[24,18]
Central steady state tracking rate - average
L040[5,77], L057[4,10]
Page | 11 AAPA Proficiency 2018 v1.2
Average steady state tracking rate - average
6. MOISTURE SENSITIVITY (TSR)
Maximum density of loose mix - average Given Value
Average compacted bulk density – unconditioned
L031[6,9]
Average compacted bulk density – conditioned
L005[46,48]
Average compacted height – unconditioned
L026[73,73], L026[72,72], L026[94,94]
Average compacted height – conditioned L026[73,73], L026[72,72], L026[94,94]
Average degree of saturation for vacuum saturated specimens
Average swell of moisture conditioned specimens
L016[63,84], L028[97,69]
Average tensile strength – unconditioned L026[49,49] L012 - WBU[86,86]
Average tensile strength – conditioned L026[49,49]
Tensile strength ratio L022[31,68], L012 - WBU[86,86], L005[46,48]
5.2 Detailed results for each reported parameter
The results for each individual test are shown in the following tables.
The charts represent each sample’s z-score shown in increasing value. On these charts, results exceeding the
maximum |z-score| of 3 are truncated to a value of 3 for presentation purposes. Within the tables, z-scores above 2.0
are highlighted in yellow, while z-scores above 3.0 are highlighted in red. The results can be compared to the adjoining
list of samples ranked by their position number.
Page | 12 AAPA Proficiency 2018 v1.2
Table 9: z-scores: Stream 1 - Asphalt Testing: Binder Content %
Position LAB ID Sample Number Result z score Test Method
1 L049 88 4.10 -7.28 AS/NZS 2891.3.3
2 L048 229 4.49 -4.09 AS/NZS 2891.3.3
3 L014 214 4.58 -3.35 AS/NZS 2891.3.1
4 L050 160 4.60 -3.19 AS/NZS 2891.3.3
5 L029 191 4.70 -2.37 AS/NZS 2891.3.1
6 L013 236 4.72 -2.21 AS/NZS 2891.3.3
7 L048 150 4.78 -1.72 AS/NZS 2891.3.3
8 L057 143 4.79 -1.64 AS/NZS 2891.3.3
9 L018 19 4.79 -1.64 AS/NZS 2891.3.3
10 L018 19 4.79 -1.64 AS/NZS 2891.3.3
11 L054-B H19-049-ASP 4.8 -1.55 AS/NZS 2891.3.3
12 L053 144 4.80 -1.55 AS/NZS 2891.3.3
13 L048 230 4.80 -1.53 AS/NZS 2891.3.3
14 L022 147 4.82 -1.39 AS/NZS 2891.3.3
15 L248 248 4.86 -1.06 AS/NZS 2891.3.1
16 L012 248 4.86 -1.06 AS/NZS 2891.3.1
17 L022 234 4.88 -0.90 AS/NZS 2891.3.3
18 L052 162 4.89 -0.82 AS/NZS 2891.3.3
19 L054-A H19.048.ASP 4.90 -0.74 AS/NZS 2891.3.3
20 L029 90 4.9 -0.74 AS/NZS 2891.3.1
21 L002 216 4.9 -0.74 AS/NZS 2891.3.1
22 L048 226 4.90 -0.74 AS/NZS 2891.3.3
23 L011 129 4.9 -0.74 AS/NZS 2891.3.1
24 L027 134 4.90 -0.74 AS/NZS 2891.3.3
25 L009 #119 4.90 -0.74 AS/NZS 2891.3.1
26 L044 142 4.90 -0.74 AS/NZS 2891.3.3
27 L012 127 4.91 -0.65 AS/NZS 2891.3.1
28 L050 50 4.91 -0.65 AS/NZS 2891.3.3
29 L026 137 4.92 -0.57 AS/NZS 2891.3.1
30 L038 146 4.92 -0.57 AS/NZS 2891.3.3
31 L017 59 4.92 -0.57 AS/NZS 2891.3.3
32 L032 225 4.93 -0.49 AS/NZS 2891.3.3
33 L005 #167 4.93 -0.49 AS/NZS 2891.3.1
34 L003 7472634 4.93 -0.49 AS/NZS 2891.3.1
35 L058 163 4.93 -0.49 AS/NZS 2891.3.3
36 L008 218 4.93 -0.49 AS/NZS 2891.3.1
37 L011 227 4.93 -0.49 AS/NZS 2891.3.1
38 L025 222,30 4.94 -0.41 AS/NZS 2891.3.1
39 L009 199 4.94 -0.41 AS/NZS 2891.3.1
40 L056 206 4.94 -0.41 AS/NZS 2891.3.3
41 L047 93 4.94 -0.41 AS/NZS 2891.3.3
42 L056 7 4.96 -0.25 AS/NZS 2891.3.3
43 L011 123 4.96 -0.25 AS/NZS 2891.3.1
44 L012 154 4.97 -0.16 AS/NZS 2891.3.1
45 L012 10 4.97 -0.16 AS/NZS 2891.3.1
46 L042 228 4.97 -0.16 AS/NZS 2891.3.3
47 L001 190 4.97 -0.16 AS/NZS 2891.3.3
48 L013 188 4.98 -0.08 AS/NZS 2891.3.3
Page | 13 AAPA Proficiency 2018 v1.2
49 L159 159 4.98 -0.08 AS/NZS 2891.3.1
50 L017 47 4.98 -0.08 AS/NZS 2891.3.3
51 L038 170 4.98 -0.08 AS/NZS 2891.3.3
52 L011 183 4.98 -0.08 AS/NZS 2891.3.1
53 L001 105 4.98 -0.08 AS/NZS 2891.3.3
54 L012 159 4.98 -0.08 AS/NZS 2891.3.1
55 L056 68 4.99 0.00 AS/NZS 2891.3.3
56 L038 69 4.99 0.00 AS/NZS 2891.3.3
57 L026 21 5.00 0.08 AS/NZS 2891.3.1
58 L026 13 5.00 0.08 AS/NZS 2891.3.1
59 L032 56 5.00 0.08 AS/NZS 2891.3.3
60 L050 253 5.00 0.08 AS/NZS 2891.3.3
61 L007 36 5.00 0.08 AS/NZS 2891.3.1
62 L033 180 5.00 0.08 AS/NZS 2891.3.1
63 L033 180 5.00 0.08 AS/NZS 2891.3.1
64 L012 72 5.00 0.08 AS/NZS 2891.3.1
65 L048 233 5.00 0.08 AS/NZS 2891.3.3
66 L027 130 5.00 0.08 AS/NZS 2891.3.3
67 L016 240 5.01 0.16 AS/NZS 2891.3.2
68 L038 135 5.01 0.16 AS/NZS 2891.3.3
69 L051 11 5.02 0.25 AS/NZS 2891.3.3
70 L011 208 5.02 0.25 AS/NZS 2891.3.1
71 L031 35 5.04 0.41 In House DOW-ITM 01-01
72 L024 187 5.05 0.49 AS/NZS 2891.3.1
73 L038 157 5.05 0.49 AS/NZS 2891.3.3
74 L023 40 5.06 0.57 AS/NZS 2891.3.1
75 L012 209 5.06 0.57 AS/NZS 2891.3.1
76 L047 239 5.06 0.57 AS/NZS 2891.3.3
77 L012 75 5.06 0.57 QTMR Q308A
78 L024 126 5.07 0.65 AS/NZS 2891.3.1
79 L004 145 5.07 0.65 AS/NZS 2891.3.1
80 L011 196 5.07 0.65 AS/NZS 2891.3.1
81 L004 145 5.07 0.65 AS/NZS 2891.3.1
82 L055 71 5.08 0.74 AS/NZS 2891.3.3
83 L020 45 5.08 0.74 AS/NZS 2891.3.1
84 L021 203 5.08 0.74 AS/NZS 2891.3.3
85 L006 106 5.08 0.74 AS/NZS 2891.3.1
86 L012 221 5.09 0.82 AS/NZS 2891.3.1
87 L051 15 5.09 0.82 AS/NZS 2891.3.3
88 L039 14 5.09 0.82 AS/NZS 2891.3.1
89 L043 174 5.09 0.82 AS/NZS 2891.3.3
90 L042 245 5.09 0.82 AS/NZS 2891.3.3
91 L026 247 5.10 0.90 AS/NZS 2891.3.1
92 L021 52 5.10 0.90 AS/NZS 2891.3.3
93 L019 186 5.10 0.90 AS/NZS 2891.3.3
94 L022 197 5.12 1.06 AS/NZS 2891.3.3
95 L041 237 5.13 1.14 AS/NZS 2891.3.1
96 L001 101 5.13 1.14 AS/NZS 2891.3.3
97 L005 #176 5.14 1.23 AS/NZS 2891.3.1
98 L012 133 5.14 1.23 AS/NZS 2891.3.1
99 L019 67 5.15 1.31 AS/NZS 2891.3.3
Page | 14 AAPA Proficiency 2018 v1.2
100 L020 23 5.16 1.39 AS/NZS 2891.3.1
101 L019 148 5.17 1.47 AS/NZS 2891.3.3
102 L038 223 5.18 1.55 AS/NZS 2891.3.3
103 L026 29 5.19 1.64 AS/NZS 2891.3.1
104 L022 217 5.19 1.64 AS/NZS 2891.3.3
105 L021 249 5.19 1.64 AS/NZS 2891.3.3
106 L042 42 5.20 1.72 AS/NZS 2891.3.1
107 L023 202 5.22 1.88 AS/NZS 2891.3.1
108 L043 20 5.22 1.88 AS/NZS 2891.3.3
109 L023 39 5.24 2.04 AS/NZS 2891.3.1
110 L001 125 5.24 2.04 AS/NZS 2891.3.3
111 L023 46 5.26 2.21 AS/NZS 2891.3.1
Avg 4.98
STD 0.161
Max 5.26
Min 4.10
Median 4.990
No. data 111
Q1 4.915
Q3 5.080
IQR 0.165
NormIQR 0.122
RobustCV 2.5
U of Med 0.015
Page | 15 AAPA Proficiency 2018 v1.2
Table 10: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 19.0 mm
Position LAB ID Sample Number Result z score Test Method
1 L026 137 100 AS/NZS 2891.3.1
2 L026 29 100 AS/NZS 2891.3.1
3 L054-A H19.048.ASP 100 AS/NZS 2891.3.3
4 L054-B H19-049-ASP 100 AS/NZS 2891.3.3
5 L026 247 100 AS/NZS 2891.3.1
6 L026 21 100 AS/NZS 2891.3.1
7 L026 13 100 AS/NZS 2891.3.1
8 L020 23 100 AS/NZS 2891.3.1
9 L014 214 100 AS/NZS 2891.3.1
10 L042 42 100 AS/NZS 2891.3.1
11 L055 71 100 AS/NZS 2891.3.3
12 L016 240 100 AS/NZS 2891.3.2
13 L023 202 100 AS/NZS 2891.3.1
14 L023 39 100 AS/NZS 2891.3.1
15 L023 40 100 AS/NZS 2891.3.1
16 L023 46 100 AS/NZS 2891.3.1
17 L020 45 100 AS/NZS 2891.3.1
18 L025 222,30 100 AS/NZS 2891.3.1
19 L032 56 100 AS/NZS 2891.3.3
20 L022 147 100 AS/NZS 2891.3.3
21 L032 225 100 AS/NZS 2891.3.3
22 L052 162 100 AS/NZS 2891.3.3
23 L022 234 100 AS/NZS 2891.3.3
24 L050 253 100 AS/NZS 2891.3.3
25 L051 11 100 AS/NZS 2891.3.3
26 L041 237 100 AS/NZS 2891.3.1
27 L053 144 100 AS/NZS 2891.3.3
28 L022 197 100 AS/NZS 2891.3.3
29 L056 68 100 AS/NZS 2891.3.3
30 L022 217 100 AS/NZS 2891.3.3
31 L021 52 100 AS/NZS 2891.3.3
32 L021 203 100 AS/NZS 2891.3.3
33 L021 249 100 AS/NZS 2891.3.3
34 L024 187 100 AS/NZS 2891.3.1
35 L024 126 100 AS/NZS 2891.3.1
36 L029 191 100 AS/NZS 2891.3.1
37 L029 90 100 AS/NZS 2891.3.1
38 L005 #176 100 AS/NZS 2891.3.1
39 L005 #167 100 AS/NZS 2891.3.1
40 L056 7 100 AS/NZS 2891.3.3
41 L012 154 100 AS/NZS 2891.3.1
42 L012 10 100 AS/NZS 2891.3.1
43 L012 221 100 AS/NZS 2891.3.1
44 L012 133 100 AS/NZS 2891.3.1
45 L002 216 100 AS/NZS 2891.3.1
46 L012 127 100 AS/NZS 2891.3.1
47 L012 209 100 AS/NZS 2891.3.1
48 L050 160 100 AS/NZS 2891.3.3
Page | 16 AAPA Proficiency 2018 v1.2
49 L013 188 100 AS/NZS 2891.3.3
50 L013 236 100 AS/NZS 2891.3.3
51 L009 199 100 AS/NZS 2891.3.1
52 L003 7472634 100 AS/NZS 2891.3.1
53 L056 206 100 AS/NZS 2891.3.3
54 L058 163 100 AS/NZS 2891.3.3
55 L006 106 100 AS/NZS 2891.3.1
56 L007 36 100 AS/NZS 2891.3.1
57 L008 218 100 AS/NZS 2891.3.1
58 L051 15 100 AS/NZS 2891.3.3
59 L039 14 100 AS/NZS 2891.3.1
60 L050 50 100 AS/NZS 2891.3.3
61 L047 93 0 AS/NZS 2891.3.3
62 L047 239 0 AS/NZS 2891.3.3
63 L004 145 100 AS/NZS 2891.3.1
64 L159 159 100 AS/NZS 2891.3.1
65 L248 248 100 AS/NZS 2891.3.1
66 L033 180 100 AS/NZS 2891.3.1
67 L033 180 100 AS/NZS 2891.3.1
68 L017 47 100 AS/NZS 2891.3.3
69 L057 143 100 AS/NZS 2891.3.3
70 L012 72 100 AS/NZS 2891.3.1
71 L012 75 100 QTMR Q308A
72 L043 20 100 AS/NZS 2891.3.3
73 L043 174 100 AS/NZS 2891.3.3
74 L038 69 100 AS/NZS 2891.3.3
75 L018 19 100 AS/NZS 2891.3.3
76 L038 135 100 AS/NZS 2891.3.3
77 L038 157 100 AS/NZS 2891.3.3
78 L038 170 100 AS/NZS 2891.3.3
79 L038 223 100 AS/NZS 2891.3.3
80 L038 146 100 AS/NZS 2891.3.3
81 L017 59 100 AS/NZS 2891.3.3
82 L019 67 100 AS/NZS 2891.3.3
83 L019 148 100 AS/NZS 2891.3.3
84 L019 186 100 AS/NZS 2891.3.3
85 L048 230 100 AS/NZS 2891.3.3
86 L048 226 100 AS/NZS 2891.3.3
87 L048 233 100 AS/NZS 2891.3.3
88 L042 228 100 AS/NZS 2891.3.3
89 L042 245 100 AS/NZS 2891.3.3
90 L048 229 100 AS/NZS 2891.3.3
91 L048 150 100 AS/NZS 2891.3.3
92 L018 19 100 AS/NZS 2891.3.3
93 L031 35 100 In House DOW-ITM 01-01
94 L011 183 100 AS/NZS 2891.3.1
95 L011 196 100 AS/NZS 2891.3.1
96 L011 227 100 AS/NZS 2891.3.1
97 L011 129 100 AS/NZS 2891.3.1
98 L011 123 100 AS/NZS 2891.3.1
99 L011 208 100 AS/NZS 2891.3.1
Page | 17 AAPA Proficiency 2018 v1.2
100 L027 130 100 AS/NZS 2891.3.3
101 L001 101 100 AS/NZS 2891.3.3
102 L001 105 100 AS/NZS 2891.3.3
103 L001 125 100 AS/NZS 2891.3.3
104 L001 190 100 AS/NZS 2891.3.3
105 L049 88 100 AS/NZS 2891.3.3
106 L012 159 100 AS/NZS 2891.3.1
107 L012 248 100 AS/NZS 2891.3.1
108 L027 134 100 AS/NZS 2891.3.3
109 L004 145 100 AS/NZS 2891.3.1
110 L009 #119 100 AS/NZS 2891.3.1
111 L044 142 100 AS/NZS 2891.3.3
Avg 98.20
STD 13.36
Max 100.00
Min 0.00
Median 100.00
No. data 111
Q1 100.000
Q3 100.000
IQR 0.000
NormIQR 0.000
RobustCV 0.00
U of Med 0.0000
Page | 18 AAPA Proficiency 2018 v1.2
Table 11: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 13.2 mm
Position LAB ID Sample Number Result z score Test Method
1 L026 137 100 AS/NZS 2891.3.1
2 L026 29 100 AS/NZS 2891.3.1
3 L054-A H19.048.ASP 100 AS/NZS 2891.3.3
4 L054-B H19-049-ASP 100 AS/NZS 2891.3.3
5 L026 247 100 AS/NZS 2891.3.1
6 L026 21 100 AS/NZS 2891.3.1
7 L026 13 100 AS/NZS 2891.3.1
8 L020 23 100 AS/NZS 2891.3.1
9 L014 214 100 AS/NZS 2891.3.1
10 L042 42 100 AS/NZS 2891.3.1
11 L055 71 100 AS/NZS 2891.3.3
12 L016 240 100 AS/NZS 2891.3.2
13 L023 202 100 AS/NZS 2891.3.1
14 L023 39 100 AS/NZS 2891.3.1
15 L023 40 100 AS/NZS 2891.3.1
16 L023 46 100 AS/NZS 2891.3.1
17 L020 45 98 AS/NZS 2891.3.1
18 L025 222,30 100 AS/NZS 2891.3.1
19 L032 56 100 AS/NZS 2891.3.3
20 L022 147 100 AS/NZS 2891.3.3
21 L032 225 100 AS/NZS 2891.3.3
22 L052 162 100 AS/NZS 2891.3.3
23 L022 234 100 AS/NZS 2891.3.3
24 L050 253 100 AS/NZS 2891.3.3
25 L051 11 100 AS/NZS 2891.3.3
26 L041 237 100 AS/NZS 2891.3.1
27 L053 144 100 AS/NZS 2891.3.3
28 L022 197 100 AS/NZS 2891.3.3
29 L056 68 100 AS/NZS 2891.3.3
30 L022 217 100 AS/NZS 2891.3.3
31 L021 52 100 AS/NZS 2891.3.3
32 L021 203 100 AS/NZS 2891.3.3
33 L021 249 100 AS/NZS 2891.3.3
34 L024 187 100 AS/NZS 2891.3.1
35 L024 126 100 AS/NZS 2891.3.1
36 L029 191 100 AS/NZS 2891.3.1
37 L029 90 100 AS/NZS 2891.3.1
38 L005 #176 100 AS/NZS 2891.3.1
39 L005 #167 100 AS/NZS 2891.3.1
40 L056 7 100 AS/NZS 2891.3.3
41 L012 154 100 AS/NZS 2891.3.1
42 L012 10 100 AS/NZS 2891.3.1
43 L012 221 100 AS/NZS 2891.3.1
44 L012 133 100 AS/NZS 2891.3.1
45 L002 216 100 AS/NZS 2891.3.1
46 L012 127 100 AS/NZS 2891.3.1
47 L012 209 100 AS/NZS 2891.3.1
48 L050 160 100 AS/NZS 2891.3.3
Page | 19 AAPA Proficiency 2018 v1.2
49 L013 188 100 AS/NZS 2891.3.3
50 L013 236 100 AS/NZS 2891.3.3
51 L009 199 100 AS/NZS 2891.3.1
52 L003 7472634 100 AS/NZS 2891.3.1
53 L056 206 100 AS/NZS 2891.3.3
54 L058 163 100 AS/NZS 2891.3.3
55 L006 106 100 AS/NZS 2891.3.1
56 L007 36 100 AS/NZS 2891.3.1
57 L008 218 100 AS/NZS 2891.3.1
58 L051 15 100 AS/NZS 2891.3.3
59 L039 14 100 AS/NZS 2891.3.1
60 L050 50 100 AS/NZS 2891.3.3
61 L047 93 100 AS/NZS 2891.3.3
62 L047 239 100 AS/NZS 2891.3.3
63 L004 145 100 AS/NZS 2891.3.1
64 L159 159 100 AS/NZS 2891.3.1
65 L248 248 100 AS/NZS 2891.3.1
66 L033 180 100 AS/NZS 2891.3.1
67 L033 180 100 AS/NZS 2891.3.1
68 L017 47 100 AS/NZS 2891.3.3
69 L057 143 100 AS/NZS 2891.3.3
70 L012 72 100 AS/NZS 2891.3.1
71 L012 75 100 QTMR Q308A
72 L043 20 100 AS/NZS 2891.3.3
73 L043 174 100 AS/NZS 2891.3.3
74 L038 69 100 AS/NZS 2891.3.3
75 L018 19 100 AS/NZS 2891.3.3
76 L038 135 100 AS/NZS 2891.3.3
77 L038 157 100 AS/NZS 2891.3.3
78 L038 170 100 AS/NZS 2891.3.3
79 L038 223 100 AS/NZS 2891.3.3
80 L038 146 100 AS/NZS 2891.3.3
81 L017 59 100 AS/NZS 2891.3.3
82 L019 67 100 AS/NZS 2891.3.3
83 L019 148 100 AS/NZS 2891.3.3
84 L019 186 100 AS/NZS 2891.3.3
85 L048 230 100 AS/NZS 2891.3.3
86 L048 226 100 AS/NZS 2891.3.3
87 L048 233 100 AS/NZS 2891.3.3
88 L042 228 100 AS/NZS 2891.3.3
89 L042 245 100 AS/NZS 2891.3.3
90 L048 229 100 AS/NZS 2891.3.3
91 L048 150 100 AS/NZS 2891.3.3
92 L018 19 100 AS/NZS 2891.3.3
93 L031 35 100 In House DOW-ITM 01-01
94 L011 183 100 AS/NZS 2891.3.1
95 L011 196 100 AS/NZS 2891.3.1
96 L011 227 100 AS/NZS 2891.3.1
97 L011 129 100 AS/NZS 2891.3.1
98 L011 123 100 AS/NZS 2891.3.1
99 L011 208 100 AS/NZS 2891.3.1
Page | 20 AAPA Proficiency 2018 v1.2
100 L027 130 100 AS/NZS 2891.3.3
101 L001 101 100 AS/NZS 2891.3.3
102 L001 105 100 AS/NZS 2891.3.3
103 L001 125 100 AS/NZS 2891.3.3
104 L001 190 100 AS/NZS 2891.3.3
105 L049 88 100 AS/NZS 2891.3.3
106 L012 159 100 AS/NZS 2891.3.1
107 L012 248 100 AS/NZS 2891.3.1
108 L027 134 100 AS/NZS 2891.3.3
109 L004 145 100 AS/NZS 2891.3.1
110 L009 #119 100 AS/NZS 2891.3.1
111 L044 142 100 AS/NZS 2891.3.3
Avg 99.97
STD 0.19
Max 100.00
Min 98.10
Median 100.00
No. data 111
Q1 100.000
Q3 100.000
IQR 0.000
NormIQR 0.000
RobustCV 0.00
U of Med 0.0000
Page | 21 AAPA Proficiency 2018 v1.2
Table 12: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 9.5 mm
Position LAB ID Sample Number Result z score Test Method
1 L020 45 81 -21.33 AS/NZS 2891.3.1
2 L011 129 95 -2.57 AS/NZS 2891.3.1
3 L048 233 96 -2.31 AS/NZS 2891.3.3
4 L021 203 96 -1.93 AS/NZS 2891.3.3
5 L011 227 96 -1.80 AS/NZS 2891.3.1
6 L026 247 96 -1.67 AS/NZS 2891.3.1
7 L026 21 96 -1.67 AS/NZS 2891.3.1
8 L020 23 96 -1.67 AS/NZS 2891.3.1
9 L029 191 96 -1.67 AS/NZS 2891.3.1
10 L002 216 96 -1.67 AS/NZS 2891.3.1
11 L011 123 96 -1.67 AS/NZS 2891.3.1
12 L012 154 96 -1.41 AS/NZS 2891.3.1
13 L058 163 96 -1.41 AS/NZS 2891.3.3
14 L005 #167 96 -1.28 AS/NZS 2891.3.1
15 L014 214 96 -1.16 AS/NZS 2891.3.1
16 L022 217 96 -1.16 AS/NZS 2891.3.3
17 L021 52 96 -1.16 AS/NZS 2891.3.3
18 L009 199 97 -1.03 AS/NZS 2891.3.1
19 L039 14 97 -0.90 AS/NZS 2891.3.1
20 L042 228 97 -0.77 AS/NZS 2891.3.3
21 L018 19 97 -0.77 AS/NZS 2891.3.3
22 L038 146 97 -0.77 AS/NZS 2891.3.3
23 L018 19 97 -0.77 AS/NZS 2891.3.3
24 L001 190 97 -0.77 AS/NZS 2891.3.3
25 L013 236 97 -0.64 AS/NZS 2891.3.3
26 L248 248 97 -0.64 AS/NZS 2891.3.1
27 L048 226 97 -0.64 AS/NZS 2891.3.3
28 L011 208 97 -0.64 AS/NZS 2891.3.1
29 L012 248 97 -0.64 AS/NZS 2891.3.1
30 L041 237 97 -0.51 AS/NZS 2891.3.1
31 L003 7472634 97 -0.51 AS/NZS 2891.3.1
32 L026 137 97 -0.39 AS/NZS 2891.3.1
33 L054-B H19-049-ASP 97 -0.39 AS/NZS 2891.3.3
34 L042 42 97 -0.39 AS/NZS 2891.3.1
35 L050 253 97 -0.39 AS/NZS 2891.3.3
36 L053 144 97 -0.39 AS/NZS 2891.3.3
37 L006 106 97 -0.39 AS/NZS 2891.3.1
38 L033 180 97 -0.39 AS/NZS 2891.3.1
39 L033 180 97 -0.39 AS/NZS 2891.3.1
40 L048 150 97 -0.39 AS/NZS 2891.3.3
41 L049 88 97 -0.39 AS/NZS 2891.3.3
42 L009 #119 97 -0.39 AS/NZS 2891.3.1
43 L048 230 97 -0.30 AS/NZS 2891.3.3
44 L023 40 97 -0.26 AS/NZS 2891.3.1
45 L012 221 97 -0.26 AS/NZS 2891.3.1
46 L017 59 97 -0.26 AS/NZS 2891.3.3
47 L019 67 97 -0.26 AS/NZS 2891.3.3
48 L019 148 97 -0.26 AS/NZS 2891.3.3
Page | 22 AAPA Proficiency 2018 v1.2
49 L048 229 97 -0.26 AS/NZS 2891.3.3
50 L055 71 97 -0.13 AS/NZS 2891.3.3
51 L051 11 97 -0.13 AS/NZS 2891.3.3
52 L021 249 97 -0.13 AS/NZS 2891.3.3
53 L012 75 97 -0.13 QTMR Q308A
54 L043 20 97 -0.13 AS/NZS 2891.3.3
55 L024 187 97 0.00 AS/NZS 2891.3.1
56 L019 186 97 0.00 AS/NZS 2891.3.3
57 L031 35 97 0.00 In House DOW-ITM 01-01
58 L056 7 97 0.13 AS/NZS 2891.3.3
59 L050 50 97 0.13 AS/NZS 2891.3.3
60 L004 145 97 0.13 AS/NZS 2891.3.1
61 L017 47 97 0.13 AS/NZS 2891.3.3
62 L043 174 97 0.13 AS/NZS 2891.3.3
63 L004 145 97 0.13 AS/NZS 2891.3.1
64 L016 240 98 0.26 AS/NZS 2891.3.2
65 L050 160 98 0.26 AS/NZS 2891.3.3
66 L057 143 98 0.26 AS/NZS 2891.3.3
67 L001 101 98 0.26 AS/NZS 2891.3.3
68 L001 125 98 0.26 AS/NZS 2891.3.3
69 L023 202 98 0.39 AS/NZS 2891.3.1
70 L023 46 98 0.39 AS/NZS 2891.3.1
71 L052 162 98 0.39 AS/NZS 2891.3.3
72 L022 234 98 0.39 AS/NZS 2891.3.3
73 L056 68 98 0.39 AS/NZS 2891.3.3
74 L011 183 98 0.39 AS/NZS 2891.3.1
75 L027 130 98 0.39 AS/NZS 2891.3.3
76 L044 142 98 0.39 AS/NZS 2891.3.3
77 L056 206 98 0.51 AS/NZS 2891.3.3
78 L032 56 98 0.64 AS/NZS 2891.3.3
79 L012 209 98 0.64 AS/NZS 2891.3.1
80 L047 239 98 0.64 AS/NZS 2891.3.3
81 L038 69 98 0.64 AS/NZS 2891.3.3
82 L038 157 98 0.64 AS/NZS 2891.3.3
83 L038 170 98 0.64 AS/NZS 2891.3.3
84 L022 147 98 0.77 AS/NZS 2891.3.3
85 L022 197 98 0.77 AS/NZS 2891.3.3
86 L005 #176 98 0.77 AS/NZS 2891.3.1
87 L012 10 98 0.77 AS/NZS 2891.3.1
88 L012 133 98 0.77 AS/NZS 2891.3.1
89 L012 127 98 0.77 AS/NZS 2891.3.1
90 L026 29 98 0.90 AS/NZS 2891.3.1
91 L054-A H19.048.ASP 98 0.90 AS/NZS 2891.3.3
92 L026 13 98 0.90 AS/NZS 2891.3.1
93 L032 225 98 0.90 AS/NZS 2891.3.3
94 L024 126 98 0.90 AS/NZS 2891.3.1
95 L029 90 98 0.90 AS/NZS 2891.3.1
96 L007 36 98 0.90 AS/NZS 2891.3.1
97 L008 218 98 0.90 AS/NZS 2891.3.1
98 L047 93 98 0.90 AS/NZS 2891.3.3
99 L012 72 98 0.90 AS/NZS 2891.3.1
Page | 23 AAPA Proficiency 2018 v1.2
100 L038 135 98 0.90 AS/NZS 2891.3.3
101 L042 245 98 0.90 AS/NZS 2891.3.3
102 L025 222,30 98 1.03 AS/NZS 2891.3.1
103 L027 134 98 1.03 AS/NZS 2891.3.3
104 L051 15 98 1.16 AS/NZS 2891.3.3
105 L013 188 98 1.28 AS/NZS 2891.3.3
106 L038 223 98 1.28 AS/NZS 2891.3.3
107 L159 159 98 1.41 AS/NZS 2891.3.1
108 L011 196 98 1.41 AS/NZS 2891.3.1
109 L012 159 98 1.41 AS/NZS 2891.3.1
110 L023 39 99 1.54 AS/NZS 2891.3.1
111 L001 105 99 2.44 AS/NZS 2891.3.3
Avg 97.12
STD 1.73
Max 99.20
Min 80.70
Median 97.30
No. data 111
Q1 96.800
Q3 97.850
IQR 1.050
NormIQR 0.778
RobustCV 0.80
U of Med 0.0926
Page | 24 AAPA Proficiency 2018 v1.2
Table 13: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 6.7 mm
Position LAB ID Sample Number Result z score Test Method
1 L020 45 64 -6.87 AS/NZS 2891.3.1
2 L053 144 72 -3.39 AS/NZS 2891.3.3
3 L021 203 75 -2.17 AS/NZS 2891.3.3
4 L026 247 76 -1.76 AS/NZS 2891.3.1
5 L020 23 76 -1.76 AS/NZS 2891.3.1
6 L029 191 76 -1.76 AS/NZS 2891.3.1
7 L005 #167 76 -1.76 AS/NZS 2891.3.1
8 L012 154 76 -1.68 AS/NZS 2891.3.1
9 L002 216 77 -1.35 AS/NZS 2891.3.1
10 L248 248 77 -1.31 AS/NZS 2891.3.1
11 L011 123 77 -1.31 AS/NZS 2891.3.1
12 L012 248 77 -1.31 AS/NZS 2891.3.1
13 L009 199 78 -1.10 AS/NZS 2891.3.1
14 L025 222,30 78 -1.06 AS/NZS 2891.3.1
15 L021 249 78 -0.98 AS/NZS 2891.3.3
16 L026 21 78 -0.94 AS/NZS 2891.3.1
17 L021 52 78 -0.94 AS/NZS 2891.3.3
18 L029 90 78 -0.94 AS/NZS 2891.3.1
19 L033 180 78 -0.94 AS/NZS 2891.3.1
20 L033 180 78 -0.94 AS/NZS 2891.3.1
21 L009 #119 78 -0.94 AS/NZS 2891.3.1
22 L159 159 78 -0.82 AS/NZS 2891.3.1
23 L012 159 78 -0.82 AS/NZS 2891.3.1
24 L056 68 79 -0.74 AS/NZS 2891.3.3
25 L019 186 79 -0.74 AS/NZS 2891.3.3
26 L058 163 79 -0.69 AS/NZS 2891.3.3
27 L043 20 79 -0.69 AS/NZS 2891.3.3
28 L048 233 79 -0.69 AS/NZS 2891.3.3
29 L027 134 79 -0.65 AS/NZS 2891.3.3
30 L050 160 79 -0.61 AS/NZS 2891.3.3
31 L048 230 79 -0.61 AS/NZS 2891.3.3
32 L050 50 79 -0.57 AS/NZS 2891.3.3
33 L026 137 79 -0.53 AS/NZS 2891.3.1
34 L012 221 79 -0.49 AS/NZS 2891.3.1
35 L042 228 79 -0.49 AS/NZS 2891.3.3
36 L044 142 79 -0.49 AS/NZS 2891.3.3
37 L022 217 79 -0.45 AS/NZS 2891.3.3
38 L019 67 79 -0.41 AS/NZS 2891.3.3
39 L056 206 79 -0.41 AS/NZS 2891.3.3
40 L041 237 79 -0.37 AS/NZS 2891.3.1
41 L012 209 79 -0.37 AS/NZS 2891.3.1
42 L013 236 79 -0.37 AS/NZS 2891.3.3
43 L051 11 80 -0.33 AS/NZS 2891.3.3
44 L057 143 80 -0.33 AS/NZS 2891.3.3
45 L038 146 80 -0.33 AS/NZS 2891.3.3
46 L056 7 80 -0.29 AS/NZS 2891.3.3
47 L051 15 80 -0.20 AS/NZS 2891.3.3
48 L022 234 80 -0.16 AS/NZS 2891.3.3
Page | 25 AAPA Proficiency 2018 v1.2
49 L048 226 80 -0.16 AS/NZS 2891.3.3
50 L026 29 80 -0.12 AS/NZS 2891.3.1
51 L023 202 80 -0.12 AS/NZS 2891.3.1
52 L008 218 80 -0.12 AS/NZS 2891.3.1
53 L031 35 80 -0.12 In House DOW-ITM 01-01
54 L038 69 80 -0.08 AS/NZS 2891.3.3
55 L003 7472634 80 -0.04 AS/NZS 2891.3.1
56 L012 72 80 0.00 AS/NZS 2891.3.1
57 L018 19 80 0.00 AS/NZS 2891.3.3
58 L018 19 80 0.00 AS/NZS 2891.3.3
59 L022 197 80 0.04 AS/NZS 2891.3.3
60 L004 145 81 0.08 AS/NZS 2891.3.1
61 L004 145 81 0.08 AS/NZS 2891.3.1
62 L039 14 81 0.12 AS/NZS 2891.3.1
63 L011 129 81 0.12 AS/NZS 2891.3.1
64 L011 227 81 0.16 AS/NZS 2891.3.1
65 L055 71 81 0.20 AS/NZS 2891.3.3
66 L022 147 81 0.20 AS/NZS 2891.3.3
67 L012 75 81 0.20 QTMR Q308A
68 L026 13 81 0.29 AS/NZS 2891.3.1
69 L012 127 81 0.29 AS/NZS 2891.3.1
70 L042 245 81 0.29 AS/NZS 2891.3.3
71 L001 101 81 0.29 AS/NZS 2891.3.3
72 L049 88 81 0.29 AS/NZS 2891.3.3
73 L052 162 81 0.33 AS/NZS 2891.3.3
74 L048 229 81 0.33 AS/NZS 2891.3.3
75 L027 130 81 0.37 AS/NZS 2891.3.3
76 L014 214 81 0.41 AS/NZS 2891.3.1
77 L011 208 81 0.41 AS/NZS 2891.3.1
78 L017 47 81 0.45 AS/NZS 2891.3.3
79 L038 170 82 0.49 AS/NZS 2891.3.3
80 L016 240 82 0.61 AS/NZS 2891.3.2
81 L032 225 82 0.65 AS/NZS 2891.3.3
82 L012 10 82 0.65 AS/NZS 2891.3.1
83 L038 135 82 0.65 AS/NZS 2891.3.3
84 L050 253 82 0.69 AS/NZS 2891.3.3
85 L043 174 82 0.69 AS/NZS 2891.3.3
86 L048 150 82 0.69 AS/NZS 2891.3.3
87 L012 133 82 0.78 AS/NZS 2891.3.1
88 L017 59 82 0.78 AS/NZS 2891.3.3
89 L011 183 82 0.78 AS/NZS 2891.3.1
90 L024 187 83 0.90 AS/NZS 2891.3.1
91 L047 239 83 0.90 AS/NZS 2891.3.3
92 L023 40 83 0.94 AS/NZS 2891.3.1
93 L032 56 83 0.98 AS/NZS 2891.3.3
94 L013 188 83 0.98 AS/NZS 2891.3.3
95 L038 223 83 1.06 AS/NZS 2891.3.3
96 L019 148 83 1.06 AS/NZS 2891.3.3
97 L054-B H19-049-ASP 83 1.10 AS/NZS 2891.3.3
98 L042 42 83 1.10 AS/NZS 2891.3.1
99 L006 106 83 1.10 AS/NZS 2891.3.1
Page | 26 AAPA Proficiency 2018 v1.2
100 L023 46 83 1.14 AS/NZS 2891.3.1
101 L023 39 83 1.19 AS/NZS 2891.3.1
102 L001 190 83 1.19 AS/NZS 2891.3.3
103 L011 196 83 1.23 AS/NZS 2891.3.1
104 L038 157 84 1.39 AS/NZS 2891.3.3
105 L005 #176 84 1.43 AS/NZS 2891.3.1
106 L024 126 84 1.51 AS/NZS 2891.3.1
107 L007 36 84 1.51 AS/NZS 2891.3.1
108 L001 125 84 1.59 AS/NZS 2891.3.3
109 L047 93 85 1.84 AS/NZS 2891.3.3
110 L001 105 85 1.88 AS/NZS 2891.3.3
111 L054-A H19.048.ASP 85 1.92 AS/NZS 2891.3.3
Avg 80.10
STD 2.81
Max 85.00
Min 63.50
Median 80.30
No. data 111
Q1 78.650
Q3 81.950
IQR 3.300
NormIQR 2.446
RobustCV 3.05
U of Med 0.2910
Page | 27 AAPA Proficiency 2018 v1.2
Table 14: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 4.75 mm
Position LAB ID Sample Number Result z score Test Method
1 L020 45 42 -7.07 AS/NZS 2891.3.1
2 L053 144 57 -2.31 AS/NZS 2891.3.3
3 L012 154 59 -1.77 AS/NZS 2891.3.1
4 L005 #167 59 -1.73 AS/NZS 2891.3.1
5 L021 203 60 -1.51 AS/NZS 2891.3.3
6 L009 #119 60 -1.35 AS/NZS 2891.3.1
7 L009 199 60 -1.22 AS/NZS 2891.3.1
8 L003 7472634 60 -1.22 AS/NZS 2891.3.1
9 L026 137 61 -1.03 AS/NZS 2891.3.1
10 L020 23 61 -1.03 AS/NZS 2891.3.1
11 L029 191 61 -1.03 AS/NZS 2891.3.1
12 L002 216 61 -1.03 AS/NZS 2891.3.1
13 L248 248 61 -0.93 AS/NZS 2891.3.1
14 L012 248 61 -0.93 AS/NZS 2891.3.1
15 L048 233 61 -0.90 AS/NZS 2891.3.3
16 L025 222,30 62 -0.84 AS/NZS 2891.3.1
17 L011 123 62 -0.84 AS/NZS 2891.3.1
18 L056 206 62 -0.84 AS/NZS 2891.3.3
19 L051 11 62 -0.80 AS/NZS 2891.3.3
20 L159 159 62 -0.77 AS/NZS 2891.3.1
21 L012 159 62 -0.77 AS/NZS 2891.3.1
22 L026 247 62 -0.71 AS/NZS 2891.3.1
23 L048 230 62 -0.71 AS/NZS 2891.3.3
24 L056 68 62 -0.61 AS/NZS 2891.3.3
25 L058 163 62 -0.61 AS/NZS 2891.3.3
26 L043 20 63 -0.55 AS/NZS 2891.3.3
27 L021 249 63 -0.55 AS/NZS 2891.3.3
28 L021 52 63 -0.45 AS/NZS 2891.3.3
29 L042 228 63 -0.45 AS/NZS 2891.3.3
30 L044 142 63 -0.45 AS/NZS 2891.3.3
31 L029 90 63 -0.39 AS/NZS 2891.3.1
32 L008 218 63 -0.39 AS/NZS 2891.3.1
33 L033 180 63 -0.39 AS/NZS 2891.3.1
34 L033 180 63 -0.39 AS/NZS 2891.3.1
35 L056 7 63 -0.39 AS/NZS 2891.3.3
36 L027 134 63 -0.32 AS/NZS 2891.3.3
37 L012 209 63 -0.26 AS/NZS 2891.3.1
38 L023 202 64 -0.22 AS/NZS 2891.3.1
39 L012 221 64 -0.22 AS/NZS 2891.3.1
40 L048 226 64 -0.22 AS/NZS 2891.3.3
41 L022 197 64 -0.22 AS/NZS 2891.3.3
42 L051 15 64 -0.19 AS/NZS 2891.3.3
43 L038 146 64 -0.19 AS/NZS 2891.3.3
44 L050 160 64 -0.16 AS/NZS 2891.3.3
45 L022 217 64 -0.13 AS/NZS 2891.3.3
46 L041 237 64 -0.10 AS/NZS 2891.3.1
47 L031 35 64 -0.10 In House DOW-ITM 01-01
48 L038 69 64 -0.06 AS/NZS 2891.3.3
Page | 28 AAPA Proficiency 2018 v1.2
49 L026 29 64 -0.06 AS/NZS 2891.3.1
50 L026 21 64 -0.06 AS/NZS 2891.3.1
51 L026 13 64 -0.06 AS/NZS 2891.3.1
52 L012 72 64 -0.03 AS/NZS 2891.3.1
53 L018 19 64 -0.03 AS/NZS 2891.3.3
54 L019 186 64 -0.03 AS/NZS 2891.3.3
55 L018 19 64 -0.03 AS/NZS 2891.3.3
56 L022 234 64 0.00 AS/NZS 2891.3.3
57 L019 67 64 0.00 AS/NZS 2891.3.3
58 L013 236 64 0.06 AS/NZS 2891.3.3
59 L047 239 65 0.10 AS/NZS 2891.3.3
60 L050 50 65 0.13 AS/NZS 2891.3.3
61 L057 143 65 0.13 AS/NZS 2891.3.3
62 L014 214 65 0.19 AS/NZS 2891.3.1
63 L042 245 65 0.19 AS/NZS 2891.3.3
64 L027 130 65 0.35 AS/NZS 2891.3.3
65 L017 47 65 0.39 AS/NZS 2891.3.3
66 L011 208 66 0.45 AS/NZS 2891.3.1
67 L004 145 66 0.48 AS/NZS 2891.3.1
68 L004 145 66 0.48 AS/NZS 2891.3.1
69 L055 71 66 0.51 AS/NZS 2891.3.3
70 L012 127 66 0.51 AS/NZS 2891.3.1
71 L048 229 66 0.51 AS/NZS 2891.3.3
72 L016 240 66 0.55 AS/NZS 2891.3.2
73 L011 227 66 0.55 AS/NZS 2891.3.1
74 L022 147 66 0.58 AS/NZS 2891.3.3
75 L052 162 66 0.71 AS/NZS 2891.3.3
76 L012 75 66 0.71 QTMR Q308A
77 L032 56 67 0.80 AS/NZS 2891.3.3
78 L001 101 67 0.80 AS/NZS 2891.3.3
79 L032 225 67 0.84 AS/NZS 2891.3.3
80 L048 150 67 0.84 AS/NZS 2891.3.3
81 L011 129 67 0.84 AS/NZS 2891.3.1
82 L042 42 67 0.90 AS/NZS 2891.3.1
83 L012 133 67 0.90 AS/NZS 2891.3.1
84 L011 183 67 0.90 AS/NZS 2891.3.1
85 L049 88 67 0.90 AS/NZS 2891.3.3
86 L012 10 67 0.93 AS/NZS 2891.3.1
87 L038 170 67 0.93 AS/NZS 2891.3.3
88 L043 174 67 0.96 AS/NZS 2891.3.3
89 L038 157 67 1.00 AS/NZS 2891.3.3
90 L023 46 68 1.09 AS/NZS 2891.3.1
91 L038 135 68 1.09 AS/NZS 2891.3.3
92 L039 14 68 1.12 AS/NZS 2891.3.1
93 L019 148 68 1.22 AS/NZS 2891.3.3
94 L054-B H19-049-ASP 68 1.22 AS/NZS 2891.3.3
95 L047 93 68 1.22 AS/NZS 2891.3.3
96 L013 188 68 1.35 AS/NZS 2891.3.3
97 L005 #176 69 1.41 AS/NZS 2891.3.1
98 L024 187 69 1.45 AS/NZS 2891.3.1
99 L024 126 69 1.45 AS/NZS 2891.3.1
Page | 29 AAPA Proficiency 2018 v1.2
100 L038 223 69 1.48 AS/NZS 2891.3.3
101 L001 105 69 1.48 AS/NZS 2891.3.3
102 L001 125 69 1.48 AS/NZS 2891.3.3
103 L017 59 69 1.51 AS/NZS 2891.3.3
104 L001 190 69 1.51 AS/NZS 2891.3.3
105 L054-A H19.048.ASP 69 1.54 AS/NZS 2891.3.3
106 L006 106 69 1.54 AS/NZS 2891.3.1
107 L023 40 69 1.61 AS/NZS 2891.3.1
108 L023 39 70 1.80 AS/NZS 2891.3.1
109 L007 36 70 1.86 AS/NZS 2891.3.1
110 L011 196 71 2.02 AS/NZS 2891.3.1
111 L050 253 71 2.18 AS/NZS 2891.3.3
Avg 64.54
STD 3.59
Max 71.00
Min 42.20
Median 64.20
No. data 111
Q1 62.800
Q3 67.000
IQR 4.200
NormIQR 3.113
RobustCV 4.85
U of Med 0.3704
Page | 30 AAPA Proficiency 2018 v1.2
Table 15: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 2.36 mm
Position LAB ID Sample Number Result z score Test Method
1 L020 45 28 -3.83 AS/NZS 2891.3.1
2 L053 144 36 -1.77 AS/NZS 2891.3.3
3 L012 154 36 -1.66 AS/NZS 2891.3.1
4 L248 248 37 -1.51 AS/NZS 2891.3.1
5 L012 248 37 -1.51 AS/NZS 2891.3.1
6 L005 #167 37 -1.49 AS/NZS 2891.3.1
7 L026 247 38 -1.26 AS/NZS 2891.3.1
8 L009 199 38 -1.26 AS/NZS 2891.3.1
9 L009 #119 38 -1.26 AS/NZS 2891.3.1
10 L058 163 38 -1.21 AS/NZS 2891.3.3
11 L021 203 38 -1.19 AS/NZS 2891.3.3
12 L050 50 38 -1.19 AS/NZS 2891.3.3
13 L026 137 39 -1.01 AS/NZS 2891.3.1
14 L023 202 39 -1.01 AS/NZS 2891.3.1
15 L003 7472634 39 -0.93 AS/NZS 2891.3.1
16 L043 20 40 -0.88 AS/NZS 2891.3.3
17 L011 123 40 -0.81 AS/NZS 2891.3.1
18 L051 11 40 -0.78 AS/NZS 2891.3.3
19 L020 23 40 -0.76 AS/NZS 2891.3.1
20 L056 68 40 -0.76 AS/NZS 2891.3.3
21 L021 249 40 -0.76 AS/NZS 2891.3.3
22 L159 159 40 -0.73 AS/NZS 2891.3.1
23 L056 206 40 -0.73 AS/NZS 2891.3.3
24 L012 159 40 -0.73 AS/NZS 2891.3.1
25 L014 214 40 -0.68 AS/NZS 2891.3.1
26 L025 222,30 41 -0.63 AS/NZS 2891.3.1
27 L031 35 41 -0.63 In House DOW-ITM 01-01
28 L044 142 41 -0.63 AS/NZS 2891.3.3
29 L051 15 41 -0.61 AS/NZS 2891.3.3
30 L048 233 41 -0.58 AS/NZS 2891.3.3
31 L056 7 41 -0.53 AS/NZS 2891.3.3
32 L026 29 41 -0.50 AS/NZS 2891.3.1
33 L048 230 41 -0.42 AS/NZS 2891.3.3
34 L012 221 42 -0.38 AS/NZS 2891.3.1
35 L047 239 42 -0.38 AS/NZS 2891.3.3
36 L050 160 42 -0.33 AS/NZS 2891.3.3
37 L057 143 42 -0.30 AS/NZS 2891.3.3
38 L022 197 42 -0.30 AS/NZS 2891.3.3
39 L041 237 42 -0.28 AS/NZS 2891.3.1
40 L026 21 42 -0.25 AS/NZS 2891.3.1
41 L002 216 42 -0.25 AS/NZS 2891.3.1
42 L008 218 42 -0.25 AS/NZS 2891.3.1
43 L018 19 42 -0.25 AS/NZS 2891.3.3
44 L018 19 42 -0.25 AS/NZS 2891.3.3
45 L027 134 42 -0.23 AS/NZS 2891.3.3
46 L048 226 42 -0.23 AS/NZS 2891.3.3
47 L022 234 42 -0.18 AS/NZS 2891.3.3
48 L048 229 42 -0.18 AS/NZS 2891.3.3
Page | 31 AAPA Proficiency 2018 v1.2
49 L011 227 42 -0.18 AS/NZS 2891.3.1
50 L022 217 42 -0.18 AS/NZS 2891.3.3
51 L012 209 43 -0.13 AS/NZS 2891.3.1
52 L021 52 43 -0.08 AS/NZS 2891.3.3
53 L038 170 43 -0.03 AS/NZS 2891.3.3
54 L019 186 43 0.00 AS/NZS 2891.3.3
55 L033 180 43 0.00 AS/NZS 2891.3.1
56 L033 180 43 0.00 AS/NZS 2891.3.1
57 L012 72 43 0.03 AS/NZS 2891.3.1
58 L013 236 43 0.08 AS/NZS 2891.3.3
59 L042 228 44 0.13 AS/NZS 2891.3.3
60 L012 127 44 0.18 AS/NZS 2891.3.1
61 L038 146 44 0.18 AS/NZS 2891.3.3
62 L019 67 44 0.18 AS/NZS 2891.3.3
63 L011 183 44 0.20 AS/NZS 2891.3.1
64 L004 145 44 0.23 AS/NZS 2891.3.1
65 L012 75 44 0.23 QTMR Q308A
66 L004 145 44 0.23 AS/NZS 2891.3.1
67 L029 90 44 0.25 AS/NZS 2891.3.1
68 L027 130 44 0.30 AS/NZS 2891.3.3
69 L011 208 44 0.33 AS/NZS 2891.3.1
70 L055 71 44 0.35 AS/NZS 2891.3.3
71 L052 162 45 0.38 AS/NZS 2891.3.3
72 L017 47 45 0.38 AS/NZS 2891.3.3
73 L012 133 45 0.45 AS/NZS 2891.3.1
74 L032 56 45 0.48 AS/NZS 2891.3.3
75 L026 13 45 0.50 AS/NZS 2891.3.1
76 L029 191 45 0.50 AS/NZS 2891.3.1
77 L038 69 45 0.55 AS/NZS 2891.3.3
78 L023 46 45 0.55 AS/NZS 2891.3.1
79 L011 129 45 0.55 AS/NZS 2891.3.1
80 L042 245 45 0.58 AS/NZS 2891.3.3
81 L017 59 46 0.63 AS/NZS 2891.3.3
82 L048 150 46 0.66 AS/NZS 2891.3.3
83 L022 147 46 0.71 AS/NZS 2891.3.3
84 L054-B H19-049-ASP 46 0.76 AS/NZS 2891.3.3
85 L038 157 46 0.76 AS/NZS 2891.3.3
86 L043 174 46 0.78 AS/NZS 2891.3.3
87 L047 93 46 0.81 AS/NZS 2891.3.3
88 L016 240 46 0.83 AS/NZS 2891.3.2
89 L032 225 47 0.91 AS/NZS 2891.3.3
90 L024 126 47 0.91 AS/NZS 2891.3.1
91 L038 135 47 0.96 AS/NZS 2891.3.3
92 L001 190 47 0.98 AS/NZS 2891.3.3
93 L005 #176 47 0.98 AS/NZS 2891.3.1
94 L042 42 47 1.01 AS/NZS 2891.3.1
95 L049 88 47 1.01 AS/NZS 2891.3.3
96 L001 101 47 1.06 AS/NZS 2891.3.3
97 L019 148 47 1.08 AS/NZS 2891.3.3
98 L011 196 47 1.11 AS/NZS 2891.3.1
99 L024 187 48 1.13 AS/NZS 2891.3.1
Page | 32 AAPA Proficiency 2018 v1.2
100 L012 10 48 1.16 AS/NZS 2891.3.1
101 L013 188 48 1.21 AS/NZS 2891.3.3
102 L054-A H19.048.ASP 48 1.26 AS/NZS 2891.3.3
103 L050 253 48 1.26 AS/NZS 2891.3.3
104 L001 105 48 1.26 AS/NZS 2891.3.3
105 L001 125 48 1.26 AS/NZS 2891.3.3
106 L038 223 48 1.31 AS/NZS 2891.3.3
107 L039 14 48 1.34 AS/NZS 2891.3.1
108 L023 39 49 1.39 AS/NZS 2891.3.1
109 L006 106 49 1.51 AS/NZS 2891.3.1
110 L007 36 49 1.51 AS/NZS 2891.3.1
111 L023 40 49 1.59 AS/NZS 2891.3.1
Avg 43.08
STD 3.58
Max 49.30
Min 27.80
Median 43.00
No. data 111
Q1 40.550
Q3 45.900
IQR 5.350
NormIQR 3.966
RobustCV 9.22
U of Med 0.4718
Page | 33 AAPA Proficiency 2018 v1.2
Table 16: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 1.18 mm
Position LAB ID Sample Number Result z score Test Method
1 L020 45 19 -4.13 AS/NZS 2891.3.1
2 L012 154 24 -2.05 AS/NZS 2891.3.1
3 L003 7472634 24 -2.05 AS/NZS 2891.3.1
4 L005 #167 24 -1.91 AS/NZS 2891.3.1
5 L248 248 25 -1.78 AS/NZS 2891.3.1
6 L012 248 25 -1.78 AS/NZS 2891.3.1
7 L009 199 25 -1.70 AS/NZS 2891.3.1
8 L053 144 25 -1.65 AS/NZS 2891.3.3
9 L056 68 25 -1.65 AS/NZS 2891.3.3
10 L009 #119 25 -1.65 AS/NZS 2891.3.1
11 L058 163 26 -1.44 AS/NZS 2891.3.3
12 L043 20 26 -1.39 AS/NZS 2891.3.3
13 L050 50 26 -1.35 AS/NZS 2891.3.3
14 L023 202 26 -1.31 AS/NZS 2891.3.1
15 L021 203 26 -1.26 AS/NZS 2891.3.3
16 L026 247 26 -1.22 AS/NZS 2891.3.1
17 L025 222,30 26 -1.13 AS/NZS 2891.3.1
18 L021 249 26 -1.13 AS/NZS 2891.3.3
19 L051 15 26 -1.09 AS/NZS 2891.3.3
20 L048 226 27 -0.96 AS/NZS 2891.3.3
21 L159 159 27 -0.96 AS/NZS 2891.3.1
22 L012 159 27 -0.96 AS/NZS 2891.3.1
23 L056 206 27 -0.87 AS/NZS 2891.3.3
24 L051 11 27 -0.83 AS/NZS 2891.3.3
25 L026 13 27 -0.78 AS/NZS 2891.3.1
26 L020 23 27 -0.78 AS/NZS 2891.3.1
27 L014 214 27 -0.78 AS/NZS 2891.3.1
28 L029 90 27 -0.78 AS/NZS 2891.3.1
29 L044 142 27 -0.78 AS/NZS 2891.3.3
30 L056 7 27 -0.74 AS/NZS 2891.3.3
31 L031 35 27 -0.70 In House DOW-ITM 01-01
32 L011 123 27 -0.65 AS/NZS 2891.3.1
33 L012 221 28 -0.57 AS/NZS 2891.3.1
34 L048 233 28 -0.57 AS/NZS 2891.3.3
35 L048 230 28 -0.56 AS/NZS 2891.3.3
36 L041 237 28 -0.52 AS/NZS 2891.3.1
37 L047 239 28 -0.48 AS/NZS 2891.3.3
38 L050 160 28 -0.48 AS/NZS 2891.3.3
39 L022 197 28 -0.44 AS/NZS 2891.3.3
40 L026 29 28 -0.35 AS/NZS 2891.3.1
41 L022 234 28 -0.35 AS/NZS 2891.3.3
42 L008 218 28 -0.35 AS/NZS 2891.3.1
43 L027 134 28 -0.30 AS/NZS 2891.3.3
44 L048 229 28 -0.30 AS/NZS 2891.3.3
45 L011 227 28 -0.26 AS/NZS 2891.3.1
46 L016 240 28 -0.26 AS/NZS 2891.3.2
47 L038 170 28 -0.22 AS/NZS 2891.3.3
48 L012 209 28 -0.17 AS/NZS 2891.3.1
Page | 34 AAPA Proficiency 2018 v1.2
49 L022 217 28 -0.17 AS/NZS 2891.3.3
50 L042 228 29 -0.13 AS/NZS 2891.3.3
51 L018 19 29 -0.09 AS/NZS 2891.3.3
52 L018 19 29 -0.09 AS/NZS 2891.3.3
53 L019 186 29 -0.04 AS/NZS 2891.3.3
54 L057 143 29 -0.04 AS/NZS 2891.3.3
55 L011 208 29 -0.04 AS/NZS 2891.3.1
56 L048 150 29 0.00 AS/NZS 2891.3.3
57 L021 52 29 0.04 AS/NZS 2891.3.3
58 L026 21 29 0.09 AS/NZS 2891.3.1
59 L029 191 29 0.09 AS/NZS 2891.3.1
60 L002 216 29 0.09 AS/NZS 2891.3.1
61 L033 180 29 0.09 AS/NZS 2891.3.1
62 L033 180 29 0.09 AS/NZS 2891.3.1
63 L012 72 29 0.09 AS/NZS 2891.3.1
64 L004 145 29 0.13 AS/NZS 2891.3.1
65 L012 75 29 0.13 QTMR Q308A
66 L038 146 29 0.13 AS/NZS 2891.3.3
67 L019 67 29 0.13 AS/NZS 2891.3.3
68 L004 145 29 0.13 AS/NZS 2891.3.1
69 L042 245 29 0.17 AS/NZS 2891.3.3
70 L011 183 29 0.17 AS/NZS 2891.3.1
71 L012 127 29 0.22 AS/NZS 2891.3.1
72 L013 236 29 0.22 AS/NZS 2891.3.3
73 L027 130 30 0.30 AS/NZS 2891.3.3
74 L017 47 30 0.30 AS/NZS 2891.3.3
75 L055 71 30 0.39 AS/NZS 2891.3.3
76 L023 46 30 0.39 AS/NZS 2891.3.1
77 L012 133 30 0.39 AS/NZS 2891.3.1
78 L038 69 30 0.44 AS/NZS 2891.3.3
79 L043 174 30 0.44 AS/NZS 2891.3.3
80 L052 162 30 0.48 AS/NZS 2891.3.3
81 L054-B H19-049-ASP 30 0.52 AS/NZS 2891.3.3
82 L011 129 30 0.52 AS/NZS 2891.3.1
83 L032 56 30 0.52 AS/NZS 2891.3.3
84 L038 135 30 0.61 AS/NZS 2891.3.3
85 L022 147 31 0.74 AS/NZS 2891.3.3
86 L047 93 31 0.74 AS/NZS 2891.3.3
87 L017 59 31 0.83 AS/NZS 2891.3.3
88 L032 225 31 0.83 AS/NZS 2891.3.3
89 L001 190 31 0.83 AS/NZS 2891.3.3
90 L054-A H19.048.ASP 31 0.96 AS/NZS 2891.3.3
91 L042 42 31 0.96 AS/NZS 2891.3.1
92 L005 #176 31 0.96 AS/NZS 2891.3.1
93 L038 157 31 0.96 AS/NZS 2891.3.3
94 L019 148 31 1.00 AS/NZS 2891.3.3
95 L024 187 31 1.13 AS/NZS 2891.3.1
96 L024 126 32 1.22 AS/NZS 2891.3.1
97 L012 10 32 1.22 AS/NZS 2891.3.1
98 L013 188 32 1.31 AS/NZS 2891.3.3
99 L011 196 32 1.35 AS/NZS 2891.3.1
Page | 35 AAPA Proficiency 2018 v1.2
100 L023 39 32 1.39 AS/NZS 2891.3.1
101 L050 253 32 1.39 AS/NZS 2891.3.3
102 L006 106 32 1.39 AS/NZS 2891.3.1
103 L007 36 32 1.39 AS/NZS 2891.3.1
104 L049 88 32 1.39 AS/NZS 2891.3.3
105 L001 101 32 1.57 AS/NZS 2891.3.3
106 L039 14 33 1.61 AS/NZS 2891.3.1
107 L023 40 33 1.65 AS/NZS 2891.3.1
108 L038 223 33 1.70 AS/NZS 2891.3.3
109 L001 105 33 1.83 AS/NZS 2891.3.3
110 L001 125 33 1.83 AS/NZS 2891.3.3
111 L026 137 36 3.13 AS/NZS 2891.3.1
Avg 28.67
STD 2.47
Max 36.00
Min 19.30
Median 28.80
No. data 111
Q1 27.000
Q3 30.100
IQR 3.100
NormIQR 2.298
RobustCV 7.98
U of Med 0.2734
Page | 36 AAPA Proficiency 2018 v1.2
Table 17: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 0.60 mm
Position LAB ID Sample Number Result z score Test Method
1 L020 45 13 -5.19 AS/NZS 2891.3.1
2 L003 7472634 15 -3.53 AS/NZS 2891.3.1
3 L056 68 15 -3.18 AS/NZS 2891.3.3
4 L056 206 16 -2.49 AS/NZS 2891.3.3
5 L012 154 17 -2.14 AS/NZS 2891.3.1
6 L053 144 17 -2.08 AS/NZS 2891.3.3
7 L005 #167 17 -2.01 AS/NZS 2891.3.1
8 L248 248 18 -1.73 AS/NZS 2891.3.1
9 L012 248 18 -1.73 AS/NZS 2891.3.1
10 L009 199 18 -1.59 AS/NZS 2891.3.1
11 L043 20 18 -1.45 AS/NZS 2891.3.3
12 L026 247 18 -1.38 AS/NZS 2891.3.1
13 L020 23 18 -1.38 AS/NZS 2891.3.1
14 L025 222,30 18 -1.38 AS/NZS 2891.3.1
15 L058 163 18 -1.38 AS/NZS 2891.3.3
16 L050 50 18 -1.38 AS/NZS 2891.3.3
17 L009 #119 18 -1.38 AS/NZS 2891.3.1
18 L023 202 18 -1.31 AS/NZS 2891.3.1
19 L021 249 18 -1.25 AS/NZS 2891.3.3
20 L051 15 18 -1.25 AS/NZS 2891.3.3
21 L021 203 18 -1.18 AS/NZS 2891.3.3
22 L041 237 19 -1.04 AS/NZS 2891.3.1
23 L159 159 19 -0.90 AS/NZS 2891.3.1
24 L044 142 19 -0.90 AS/NZS 2891.3.3
25 L051 11 19 -0.90 AS/NZS 2891.3.3
26 L012 159 19 -0.90 AS/NZS 2891.3.1
27 L011 123 19 -0.83 AS/NZS 2891.3.1
28 L031 35 19 -0.76 In House DOW-ITM 01-01
29 L026 29 19 -0.69 AS/NZS 2891.3.1
30 L026 13 19 -0.69 AS/NZS 2891.3.1
31 L029 90 19 -0.69 AS/NZS 2891.3.1
32 L014 214 19 -0.62 AS/NZS 2891.3.1
33 L012 221 19 -0.62 AS/NZS 2891.3.1
34 L047 239 19 -0.55 AS/NZS 2891.3.3
35 L011 227 19 -0.55 AS/NZS 2891.3.1
36 L022 197 19 -0.55 AS/NZS 2891.3.3
37 L050 160 19 -0.48 AS/NZS 2891.3.3
38 L056 7 19 -0.48 AS/NZS 2891.3.3
39 L022 234 19 -0.42 AS/NZS 2891.3.3
40 L016 240 19 -0.42 AS/NZS 2891.3.2
41 L012 209 20 -0.35 AS/NZS 2891.3.1
42 L057 143 20 -0.35 AS/NZS 2891.3.3
43 L011 208 20 -0.35 AS/NZS 2891.3.1
44 L027 134 20 -0.28 AS/NZS 2891.3.3
45 L042 228 20 -0.28 AS/NZS 2891.3.3
46 L048 230 20 -0.17 AS/NZS 2891.3.3
47 L048 233 20 -0.14 AS/NZS 2891.3.3
48 L012 72 20 -0.14 AS/NZS 2891.3.1
Page | 37 AAPA Proficiency 2018 v1.2
49 L022 217 20 -0.14 AS/NZS 2891.3.3
50 L038 170 20 -0.07 AS/NZS 2891.3.3
51 L055 71 20 -0.07 AS/NZS 2891.3.3
52 L011 183 20 -0.07 AS/NZS 2891.3.1
53 L048 226 20 -0.07 AS/NZS 2891.3.3
54 L026 21 20 0.00 AS/NZS 2891.3.1
55 L029 191 20 0.00 AS/NZS 2891.3.1
56 L002 216 20 0.00 AS/NZS 2891.3.1
57 L008 218 20 0.00 AS/NZS 2891.3.1
58 L004 145 20 0.00 AS/NZS 2891.3.1
59 L033 180 20 0.00 AS/NZS 2891.3.1
60 L033 180 20 0.00 AS/NZS 2891.3.1
61 L012 75 20 0.00 QTMR Q308A
62 L048 150 20 0.00 AS/NZS 2891.3.3
63 L004 145 20 0.00 AS/NZS 2891.3.1
64 L021 52 20 0.07 AS/NZS 2891.3.3
65 L048 229 20 0.07 AS/NZS 2891.3.3
66 L017 47 20 0.07 AS/NZS 2891.3.3
67 L018 19 20 0.07 AS/NZS 2891.3.3
68 L018 19 20 0.07 AS/NZS 2891.3.3
69 L042 245 20 0.14 AS/NZS 2891.3.3
70 L012 127 20 0.14 AS/NZS 2891.3.1
71 L038 146 20 0.14 AS/NZS 2891.3.3
72 L019 186 20 0.21 AS/NZS 2891.3.3
73 L019 67 20 0.28 AS/NZS 2891.3.3
74 L038 69 21 0.35 AS/NZS 2891.3.3
75 L023 46 21 0.35 AS/NZS 2891.3.1
76 L012 133 21 0.35 AS/NZS 2891.3.1
77 L027 130 21 0.42 AS/NZS 2891.3.3
78 L001 190 21 0.42 AS/NZS 2891.3.3
79 L043 174 21 0.42 AS/NZS 2891.3.3
80 L052 162 21 0.48 AS/NZS 2891.3.3
81 L013 236 21 0.48 AS/NZS 2891.3.3
82 L032 56 21 0.48 AS/NZS 2891.3.3
83 L047 93 21 0.62 AS/NZS 2891.3.3
84 L022 147 21 0.62 AS/NZS 2891.3.3
85 L054-A H19.048.ASP 21 0.69 AS/NZS 2891.3.3
86 L054-B H19-049-ASP 21 0.69 AS/NZS 2891.3.3
87 L032 225 21 0.69 AS/NZS 2891.3.3
88 L001 105 21 0.69 AS/NZS 2891.3.3
89 L001 125 21 0.69 AS/NZS 2891.3.3
90 L038 135 21 0.69 AS/NZS 2891.3.3
91 L011 129 21 0.76 AS/NZS 2891.3.1
92 L017 59 21 0.83 AS/NZS 2891.3.3
93 L011 196 22 1.18 AS/NZS 2891.3.1
94 L005 #176 22 1.18 AS/NZS 2891.3.1
95 L019 148 22 1.25 AS/NZS 2891.3.3
96 L038 157 22 1.25 AS/NZS 2891.3.3
97 L023 39 22 1.31 AS/NZS 2891.3.1
98 L024 187 22 1.31 AS/NZS 2891.3.1
99 L038 223 22 1.38 AS/NZS 2891.3.3
Page | 38 AAPA Proficiency 2018 v1.2
100 L042 42 22 1.38 AS/NZS 2891.3.1
101 L050 253 22 1.38 AS/NZS 2891.3.3
102 L006 106 22 1.38 AS/NZS 2891.3.1
103 L007 36 22 1.38 AS/NZS 2891.3.1
104 L039 14 22 1.38 AS/NZS 2891.3.1
105 L012 10 22 1.45 AS/NZS 2891.3.1
106 L013 188 22 1.52 AS/NZS 2891.3.3
107 L001 101 22 1.52 AS/NZS 2891.3.3
108 L023 40 23 1.80 AS/NZS 2891.3.1
109 L049 88 23 2.08 AS/NZS 2891.3.3
110 L024 126 23 2.14 AS/NZS 2891.3.1
111 L026 137 28 5.53 AS/NZS 2891.3.1
Avg 19.84
STD 1.86
Max 28.00
Min 12.50
Median 20.00
No. data 111
Q1 18.950
Q3 20.900
IQR 1.950
NormIQR 1.446
RobustCV 7.23
U of Med 0.1720
Page | 39 AAPA Proficiency 2018 v1.2
Table 18: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 0.30 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 7472634 7 -8.63 AS/NZS 2891.3.1
2 L020 45 8 -7.01 AS/NZS 2891.3.1
3 L056 68 8 -6.48 AS/NZS 2891.3.3
4 L056 206 10 -4.45 AS/NZS 2891.3.3
5 L005 #167 11 -2.56 AS/NZS 2891.3.1
6 L012 154 12 -1.89 AS/NZS 2891.3.1
7 L009 199 12 -1.62 AS/NZS 2891.3.1
8 L048 226 12 -1.48 AS/NZS 2891.3.3
9 L026 247 12 -1.35 AS/NZS 2891.3.1
10 L020 23 12 -1.35 AS/NZS 2891.3.1
11 L025 222,30 12 -1.35 AS/NZS 2891.3.1
12 L053 144 12 -1.35 AS/NZS 2891.3.3
13 L029 90 12 -1.35 AS/NZS 2891.3.1
14 L248 248 12 -1.35 AS/NZS 2891.3.1
15 L012 248 12 -1.35 AS/NZS 2891.3.1
16 L009 #119 12 -1.35 AS/NZS 2891.3.1
17 L021 249 12 -1.21 AS/NZS 2891.3.3
18 L058 163 12 -1.21 AS/NZS 2891.3.3
19 L043 20 12 -1.21 AS/NZS 2891.3.3
20 L023 202 12 -1.21 AS/NZS 2891.3.1
21 L041 237 12 -1.08 AS/NZS 2891.3.1
22 L044 142 12 -1.08 AS/NZS 2891.3.3
23 L051 15 12 -1.08 AS/NZS 2891.3.3
24 L050 50 12 -1.08 AS/NZS 2891.3.3
25 L021 203 12 -0.94 AS/NZS 2891.3.3
26 L011 123 12 -0.81 AS/NZS 2891.3.1
27 L056 7 12 -0.81 AS/NZS 2891.3.3
28 L016 240 13 -0.67 AS/NZS 2891.3.2
29 L012 221 13 -0.67 AS/NZS 2891.3.1
30 L047 239 13 -0.67 AS/NZS 2891.3.3
31 L051 11 13 -0.54 AS/NZS 2891.3.3
32 L031 35 13 -0.54 In House DOW-ITM 01-01
33 L011 227 13 -0.54 AS/NZS 2891.3.1
34 L159 159 13 -0.40 AS/NZS 2891.3.1
35 L012 159 13 -0.40 AS/NZS 2891.3.1
36 L027 134 13 -0.27 AS/NZS 2891.3.3
37 L014 214 13 -0.27 AS/NZS 2891.3.1
38 L055 71 13 -0.27 AS/NZS 2891.3.3
39 L012 75 13 -0.27 QTMR Q308A
40 L011 183 13 -0.27 AS/NZS 2891.3.1
41 L011 208 13 -0.27 AS/NZS 2891.3.1
42 L022 197 13 -0.27 AS/NZS 2891.3.3
43 L057 143 13 -0.13 AS/NZS 2891.3.3
44 L050 160 13 -0.13 AS/NZS 2891.3.3
45 L001 105 13 -0.13 AS/NZS 2891.3.3
46 L001 125 13 -0.13 AS/NZS 2891.3.3
47 L026 29 13 0.00 AS/NZS 2891.3.1
48 L026 21 13 0.00 AS/NZS 2891.3.1
Page | 40 AAPA Proficiency 2018 v1.2
49 L026 13 13 0.00 AS/NZS 2891.3.1
50 L023 46 13 0.00 AS/NZS 2891.3.1
51 L022 234 13 0.00 AS/NZS 2891.3.3
52 L029 191 13 0.00 AS/NZS 2891.3.1
53 L012 133 13 0.00 AS/NZS 2891.3.1
54 L002 216 13 0.00 AS/NZS 2891.3.1
55 L008 218 13 0.00 AS/NZS 2891.3.1
56 L004 145 13 0.00 AS/NZS 2891.3.1
57 L033 180 13 0.00 AS/NZS 2891.3.1
58 L033 180 13 0.00 AS/NZS 2891.3.1
59 L012 72 13 0.00 AS/NZS 2891.3.1
60 L048 233 13 0.00 AS/NZS 2891.3.3
61 L004 145 13 0.00 AS/NZS 2891.3.1
62 L048 230 13 0.01 AS/NZS 2891.3.3
63 L021 52 13 0.13 AS/NZS 2891.3.3
64 L048 150 13 0.13 AS/NZS 2891.3.3
65 L001 190 13 0.13 AS/NZS 2891.3.3
66 L012 209 13 0.13 AS/NZS 2891.3.1
67 L047 93 13 0.13 AS/NZS 2891.3.3
68 L019 186 13 0.27 AS/NZS 2891.3.3
69 L017 47 13 0.27 AS/NZS 2891.3.3
70 L011 129 13 0.27 AS/NZS 2891.3.1
71 L043 174 13 0.27 AS/NZS 2891.3.3
72 L019 67 13 0.27 AS/NZS 2891.3.3
73 L022 217 13 0.27 AS/NZS 2891.3.3
74 L012 127 13 0.40 AS/NZS 2891.3.1
75 L018 19 13 0.40 AS/NZS 2891.3.3
76 L018 19 13 0.40 AS/NZS 2891.3.3
77 L027 130 13 0.54 AS/NZS 2891.3.3
78 L042 245 13 0.54 AS/NZS 2891.3.3
79 L038 146 13 0.54 AS/NZS 2891.3.3
80 L048 229 13 0.54 AS/NZS 2891.3.3
81 L038 69 14 0.67 AS/NZS 2891.3.3
82 L038 170 14 0.67 AS/NZS 2891.3.3
83 L023 39 14 0.67 AS/NZS 2891.3.1
84 L017 59 14 0.67 AS/NZS 2891.3.3
85 L013 236 14 0.67 AS/NZS 2891.3.3
86 L032 56 14 0.67 AS/NZS 2891.3.3
87 L022 147 14 0.81 AS/NZS 2891.3.3
88 L011 196 14 0.81 AS/NZS 2891.3.1
89 L042 228 14 0.81 AS/NZS 2891.3.3
90 L052 162 14 0.94 AS/NZS 2891.3.3
91 L032 225 14 1.08 AS/NZS 2891.3.3
92 L024 187 14 1.21 AS/NZS 2891.3.1
93 L038 135 14 1.21 AS/NZS 2891.3.3
94 L019 148 14 1.35 AS/NZS 2891.3.3
95 L054-A H19.048.ASP 14 1.35 AS/NZS 2891.3.3
96 L054-B H19-049-ASP 14 1.35 AS/NZS 2891.3.3
97 L042 42 14 1.35 AS/NZS 2891.3.1
98 L050 253 14 1.35 AS/NZS 2891.3.3
99 L006 106 14 1.35 AS/NZS 2891.3.1
Page | 41 AAPA Proficiency 2018 v1.2
100 L007 36 14 1.35 AS/NZS 2891.3.1
101 L039 14 14 1.35 AS/NZS 2891.3.1
102 L038 157 14 1.35 AS/NZS 2891.3.3
103 L023 40 14 1.48 AS/NZS 2891.3.1
104 L012 10 14 1.48 AS/NZS 2891.3.1
105 L005 #176 14 1.48 AS/NZS 2891.3.1
106 L013 188 14 1.62 AS/NZS 2891.3.3
107 L001 101 14 1.62 AS/NZS 2891.3.3
108 L038 223 14 1.75 AS/NZS 2891.3.3
109 L049 88 15 2.70 AS/NZS 2891.3.3
110 L024 126 16 4.18 AS/NZS 2891.3.1
111 L026 137 22 12.14 AS/NZS 2891.3.1
Avg 12.96
STD 1.49
Max 22.00
Min 6.60
Median 13.00
No. data 111
Q1 12.500
Q3 13.500
IQR 1.000
NormIQR 0.741
RobustCV 5.70
U of Med 0.0882
Page | 42 AAPA Proficiency 2018 v1.2
Table 19: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 0.150 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 7472634 1.0 -19.43 AS/NZS 2891.3.1
2 L056 68 3.3 -13.22 AS/NZS 2891.3.3
3 L056 206 5.3 -7.82 AS/NZS 2891.3.3
4 L005 #167 6.9 -3.51 AS/NZS 2891.3.1
5 L048 226 7.5 -1.89 AS/NZS 2891.3.3
6 L001 105 7.5 -1.89 AS/NZS 2891.3.3
7 L001 125 7.5 -1.89 AS/NZS 2891.3.3
8 L001 190 7.5 -1.89 AS/NZS 2891.3.3
9 L016 240 7.6 -1.62 AS/NZS 2891.3.2
10 L025 222,30 7.6 -1.62 AS/NZS 2891.3.1
11 L020 23 7.7 -1.35 AS/NZS 2891.3.1
12 L041 237 7.7 -1.35 AS/NZS 2891.3.1
13 L011 129 7.7 -1.35 AS/NZS 2891.3.1
14 L009 199 7.8 -1.08 AS/NZS 2891.3.1
15 L009 #119 7.8 -1.08 AS/NZS 2891.3.1
16 L044 142 7.8 -1.08 AS/NZS 2891.3.3
17 L020 45 7.8 -1.08 AS/NZS 2891.3.1
18 L012 154 7.8 -1.08 AS/NZS 2891.3.1
19 L248 248 7.8 -1.08 AS/NZS 2891.3.1
20 L011 123 7.8 -1.08 AS/NZS 2891.3.1
21 L012 248 7.8 -1.08 AS/NZS 2891.3.1
22 L023 39 7.9 -0.81 AS/NZS 2891.3.1
23 L029 90 7.9 -0.81 AS/NZS 2891.3.1
24 L012 75 7.9 -0.81 QTMR Q308A
25 L011 208 7.9 -0.81 AS/NZS 2891.3.1
26 L056 7 7.9 -0.81 AS/NZS 2891.3.3
27 L021 249 7.9 -0.81 AS/NZS 2891.3.3
28 L026 247 8.0 -0.54 AS/NZS 2891.3.1
29 L023 46 8.0 -0.54 AS/NZS 2891.3.1
30 L053 144 8.0 -0.54 AS/NZS 2891.3.3
31 L021 203 8.0 -0.54 AS/NZS 2891.3.3
32 L051 15 8.0 -0.54 AS/NZS 2891.3.3
33 L047 93 8.0 -0.54 AS/NZS 2891.3.3
34 L033 180 8.0 -0.54 AS/NZS 2891.3.1
35 L033 180 8.0 -0.54 AS/NZS 2891.3.1
36 L011 227 8.0 -0.54 AS/NZS 2891.3.1
37 L001 101 8.0 -0.54 AS/NZS 2891.3.3
38 L058 163 8.1 -0.27 AS/NZS 2891.3.3
39 L008 218 8.1 -0.27 AS/NZS 2891.3.1
40 L050 50 8.1 -0.27 AS/NZS 2891.3.3
41 L043 20 8.1 -0.27 AS/NZS 2891.3.3
42 L048 233 8.1 -0.27 AS/NZS 2891.3.3
43 L042 245 8.1 -0.27 AS/NZS 2891.3.3
44 L026 21 8.1 -0.27 AS/NZS 2891.3.1
45 L011 183 8.1 -0.27 AS/NZS 2891.3.1
46 L011 196 8.1 -0.27 AS/NZS 2891.3.1
47 L042 228 8.1 -0.27 AS/NZS 2891.3.3
48 L027 134 8.2 0.00 AS/NZS 2891.3.3
Page | 43 AAPA Proficiency 2018 v1.2
49 L019 186 8.2 0.00 AS/NZS 2891.3.3
50 L055 71 8.2 0.00 AS/NZS 2891.3.3
51 L023 202 8.2 0.00 AS/NZS 2891.3.1
52 L012 133 8.2 0.00 AS/NZS 2891.3.1
53 L039 14 8.2 0.00 AS/NZS 2891.3.1
54 L012 72 8.2 0.00 AS/NZS 2891.3.1
55 L031 35 8.2 0.00 In House DOW-ITM 01-01
56 L043 174 8.2 0.00 AS/NZS 2891.3.3
57 L022 147 8.2 0.00 AS/NZS 2891.3.3
58 L050 253 8.2 0.00 AS/NZS 2891.3.3
59 L021 52 8.2 0.00 AS/NZS 2891.3.3
60 L006 106 8.2 0.00 AS/NZS 2891.3.1
61 L007 36 8.2 0.00 AS/NZS 2891.3.1
62 L019 67 8.2 0.00 AS/NZS 2891.3.3
63 L022 197 8.2 0.00 AS/NZS 2891.3.3
64 L048 230 8.3 0.27 AS/NZS 2891.3.3
65 L048 150 8.3 0.27 AS/NZS 2891.3.3
66 L022 234 8.3 0.27 AS/NZS 2891.3.3
67 L012 127 8.3 0.27 AS/NZS 2891.3.1
68 L012 209 8.3 0.27 AS/NZS 2891.3.1
69 L004 145 8.3 0.27 AS/NZS 2891.3.1
70 L004 145 8.3 0.27 AS/NZS 2891.3.1
71 L038 146 8.3 0.27 AS/NZS 2891.3.3
72 L027 130 8.4 0.54 AS/NZS 2891.3.3
73 L038 69 8.4 0.54 AS/NZS 2891.3.3
74 L054-B H19-049-ASP 8.4 0.54 AS/NZS 2891.3.3
75 L023 40 8.4 0.54 AS/NZS 2891.3.1
76 L012 10 8.4 0.54 AS/NZS 2891.3.1
77 L012 221 8.4 0.54 AS/NZS 2891.3.1
78 L159 159 8.4 0.54 AS/NZS 2891.3.1
79 L017 47 8.4 0.54 AS/NZS 2891.3.3
80 L051 11 8.4 0.54 AS/NZS 2891.3.3
81 L022 217 8.4 0.54 AS/NZS 2891.3.3
82 L012 159 8.4 0.54 AS/NZS 2891.3.1
83 L024 187 8.5 0.81 AS/NZS 2891.3.1
84 L026 29 8.5 0.81 AS/NZS 2891.3.1
85 L054-A H19.048.ASP 8.5 0.81 AS/NZS 2891.3.3
86 L026 13 8.5 0.81 AS/NZS 2891.3.1
87 L050 160 8.5 0.81 AS/NZS 2891.3.3
88 L057 143 8.5 0.81 AS/NZS 2891.3.3
89 L018 19 8.5 0.81 AS/NZS 2891.3.3
90 L018 19 8.5 0.81 AS/NZS 2891.3.3
91 L032 56 8.5 0.81 AS/NZS 2891.3.3
92 L038 135 8.5 0.81 AS/NZS 2891.3.3
93 L019 148 8.6 1.08 AS/NZS 2891.3.3
94 L032 225 8.6 1.08 AS/NZS 2891.3.3
95 L042 42 8.6 1.08 AS/NZS 2891.3.1
96 L052 162 8.6 1.08 AS/NZS 2891.3.3
97 L013 236 8.6 1.08 AS/NZS 2891.3.3
98 L038 170 8.7 1.35 AS/NZS 2891.3.3
99 L014 214 8.7 1.35 AS/NZS 2891.3.1
Page | 44 AAPA Proficiency 2018 v1.2
100 L002 216 8.7 1.35 AS/NZS 2891.3.1
101 L048 229 8.7 1.35 AS/NZS 2891.3.3
102 L029 191 8.8 1.62 AS/NZS 2891.3.1
103 L038 223 8.9 1.89 AS/NZS 2891.3.3
104 L013 188 8.9 1.89 AS/NZS 2891.3.3
105 L005 #176 8.9 1.89 AS/NZS 2891.3.1
106 L038 157 8.9 1.89 AS/NZS 2891.3.3
107 L047 239 9.0 2.16 AS/NZS 2891.3.3
108 L017 59 9.0 2.16 AS/NZS 2891.3.3
109 L049 88 9.0 2.16 AS/NZS 2891.3.3
110 L024 126 11.3 8.36 AS/NZS 2891.3.1
111 L026 137 17.9 26.17 AS/NZS 2891.3.1
Avg 8.19
STD 1.36
Max 17.90
Min 1.00
Median 8.20
No. data 111
Q1 8.000
Q3 8.500
IQR 0.500
NormIQR 0.371
RobustCV 4.52
U of Med 0.0441
Page | 45 AAPA Proficiency 2018 v1.2
Table 20: z-scores: Stream 1 - Asphalt Testing: Grading / Percentage passing 0.075 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 7472634 -1.5 -25.29 AS/NZS 2891.3.1
2 L056 68 1.0 -16.86 AS/NZS 2891.3.3
3 L027 134 1.5 -15.18 AS/NZS 2891.3.3
4 L056 206 3.1 -9.78 AS/NZS 2891.3.3
5 L005 #167 4.8 -4.05 AS/NZS 2891.3.1
6 L016 240 5.3 -2.36 AS/NZS 2891.3.2
7 L001 105 5.3 -2.36 AS/NZS 2891.3.3
8 L001 125 5.3 -2.36 AS/NZS 2891.3.3
9 L001 190 5.4 -2.02 AS/NZS 2891.3.3
10 L025 222,30 5.5 -1.69 AS/NZS 2891.3.1
11 L051 15 5.6 -1.35 AS/NZS 2891.3.3
12 L001 101 5.6 -1.35 AS/NZS 2891.3.3
13 L020 23 5.6 -1.35 AS/NZS 2891.3.1
14 L023 39 5.6 -1.35 AS/NZS 2891.3.1
15 L020 45 5.6 -1.35 AS/NZS 2891.3.1
16 L011 183 5.6 -1.35 AS/NZS 2891.3.1
17 L044 142 5.7 -1.01 AS/NZS 2891.3.3
18 L041 237 5.7 -1.01 AS/NZS 2891.3.1
19 L029 90 5.7 -1.01 AS/NZS 2891.3.1
20 L012 75 5.7 -1.01 QTMR Q308A
21 L011 196 5.7 -1.01 AS/NZS 2891.3.1
22 L011 227 5.7 -1.01 AS/NZS 2891.3.1
23 L011 208 5.7 -1.01 AS/NZS 2891.3.1
24 L048 226 5.7 -1.01 AS/NZS 2891.3.3
25 L056 7 5.7 -1.01 AS/NZS 2891.3.3
26 L022 147 5.8 -0.67 AS/NZS 2891.3.3
27 L050 253 5.8 -0.67 AS/NZS 2891.3.3
28 L021 249 5.8 -0.67 AS/NZS 2891.3.3
29 L007 36 5.8 -0.67 AS/NZS 2891.3.1
30 L039 14 5.8 -0.67 AS/NZS 2891.3.1
31 L047 93 5.8 -0.67 AS/NZS 2891.3.3
32 L011 123 5.8 -0.67 AS/NZS 2891.3.1
33 L022 197 5.8 -0.67 AS/NZS 2891.3.3
34 L042 42 5.9 -0.34 AS/NZS 2891.3.1
35 L055 71 5.9 -0.34 AS/NZS 2891.3.3
36 L023 46 5.9 -0.34 AS/NZS 2891.3.1
37 L012 154 5.9 -0.34 AS/NZS 2891.3.1
38 L248 248 5.9 -0.34 AS/NZS 2891.3.1
39 L033 180 5.9 -0.34 AS/NZS 2891.3.1
40 L033 180 5.9 -0.34 AS/NZS 2891.3.1
41 L011 129 5.9 -0.34 AS/NZS 2891.3.1
42 L012 248 5.9 -0.34 AS/NZS 2891.3.1
43 L022 217 5.9 -0.34 AS/NZS 2891.3.3
44 L021 52 5.9 -0.34 AS/NZS 2891.3.3
45 L021 203 5.9 -0.34 AS/NZS 2891.3.3
46 L009 199 5.9 -0.34 AS/NZS 2891.3.1
47 L006 106 5.9 -0.34 AS/NZS 2891.3.1
48 L008 218 5.9 -0.34 AS/NZS 2891.3.1
Page | 46 AAPA Proficiency 2018 v1.2
49 L009 #119 5.9 -0.34 AS/NZS 2891.3.1
50 L019 186 6.0 0.00 AS/NZS 2891.3.3
51 L042 245 6.0 0.00 AS/NZS 2891.3.3
52 L054-A H19.048.ASP 6.0 0.00 AS/NZS 2891.3.3
53 L026 21 6.0 0.00 AS/NZS 2891.3.1
54 L022 234 6.0 0.00 AS/NZS 2891.3.3
55 L012 10 6.0 0.00 AS/NZS 2891.3.1
56 L012 133 6.0 0.00 AS/NZS 2891.3.1
57 L012 127 6.0 0.00 AS/NZS 2891.3.1
58 L047 239 6.0 0.00 AS/NZS 2891.3.3
59 L017 47 6.0 0.00 AS/NZS 2891.3.3
60 L048 233 6.0 0.00 AS/NZS 2891.3.3
61 L048 150 6.0 0.00 AS/NZS 2891.3.3
62 L031 35 6.0 0.00 In House DOW-ITM 01-01
63 L043 174 6.0 0.00 AS/NZS 2891.3.3
64 L042 228 6.0 0.00 AS/NZS 2891.3.3
65 L019 67 6.0 0.00 AS/NZS 2891.3.3
66 L050 160 6.1 0.34 AS/NZS 2891.3.3
67 L058 163 6.1 0.34 AS/NZS 2891.3.3
68 L050 50 6.1 0.34 AS/NZS 2891.3.3
69 L024 187 6.1 0.34 AS/NZS 2891.3.1
70 L054-B H19-049-ASP 6.1 0.34 AS/NZS 2891.3.3
71 L026 247 6.1 0.34 AS/NZS 2891.3.1
72 L023 40 6.1 0.34 AS/NZS 2891.3.1
73 L053 144 6.1 0.34 AS/NZS 2891.3.3
74 L012 221 6.1 0.34 AS/NZS 2891.3.1
75 L012 209 6.1 0.34 AS/NZS 2891.3.1
76 L004 145 6.1 0.34 AS/NZS 2891.3.1
77 L012 72 6.1 0.34 AS/NZS 2891.3.1
78 L004 145 6.1 0.34 AS/NZS 2891.3.1
79 L032 56 6.1 0.34 AS/NZS 2891.3.3
80 L038 135 6.1 0.34 AS/NZS 2891.3.3
81 L048 230 6.2 0.51 AS/NZS 2891.3.3
82 L019 148 6.2 0.67 AS/NZS 2891.3.3
83 L038 69 6.2 0.67 AS/NZS 2891.3.3
84 L043 20 6.2 0.67 AS/NZS 2891.3.3
85 L051 11 6.2 0.67 AS/NZS 2891.3.3
86 L038 146 6.2 0.67 AS/NZS 2891.3.3
87 L027 130 6.3 1.01 AS/NZS 2891.3.3
88 L032 225 6.3 1.01 AS/NZS 2891.3.3
89 L023 202 6.3 1.01 AS/NZS 2891.3.1
90 L052 162 6.3 1.01 AS/NZS 2891.3.3
91 L057 143 6.3 1.01 AS/NZS 2891.3.3
92 L018 19 6.3 1.01 AS/NZS 2891.3.3
93 L018 19 6.3 1.01 AS/NZS 2891.3.3
94 L013 236 6.3 1.01 AS/NZS 2891.3.3
95 L026 13 6.4 1.35 AS/NZS 2891.3.1
96 L002 216 6.4 1.35 AS/NZS 2891.3.1
97 L159 159 6.4 1.35 AS/NZS 2891.3.1
98 L012 159 6.4 1.35 AS/NZS 2891.3.1
99 L038 170 6.5 1.69 AS/NZS 2891.3.3
Page | 47 AAPA Proficiency 2018 v1.2
100 L026 29 6.5 1.69 AS/NZS 2891.3.1
101 L014 214 6.5 1.69 AS/NZS 2891.3.1
102 L029 191 6.5 1.69 AS/NZS 2891.3.1
103 L017 59 6.5 1.69 AS/NZS 2891.3.3
104 L048 229 6.5 1.69 AS/NZS 2891.3.3
105 L049 88 6.5 1.69 AS/NZS 2891.3.3
106 L013 188 6.5 1.69 AS/NZS 2891.3.3
107 L038 157 6.5 1.69 AS/NZS 2891.3.3
108 L038 223 6.6 2.02 AS/NZS 2891.3.3
109 L005 #176 6.7 2.36 AS/NZS 2891.3.1
110 L024 126 9.1 10.45 AS/NZS 2891.3.1
111 L026 137 15.9 33.39 AS/NZS 2891.3.1
Avg 5.94
STD 1.44
Max 15.90
Min -1.50
Median 6.00
No. data 111
Q1 5.800
Q3 6.200
IQR 0.400
NormIQR 0.297
RobustCV 4.94
U of Med 0.0353
Page | 48 AAPA Proficiency 2018 v1.2
Table 21: z-scores: Stream 1 - Asphalt Testing: Maximum Density, average of duplicate test (t/m3)
Position LAB ID Sample Number Result z score Test Method
1 L005 #167 2.362, 2.369 -23.73 AS/NZS 2891.7.1
2 L048 233 2.643, 2.438 -7.73 AS/NZS 2891.7.1
3 L024 187 2.582, 2.588 -3.66 AS/NZS 2891.7.1
4 L041 237 2.584, 2.588 -3.57 AS2891.7.3
5 L054-B H19-049-ASP 2.593, 2.599 -2.65 AS/NZS 2891.7.1
6 L054-A H19.048.ASP 2.596, 2.599 -2.52 AS/NZS 2891.7.1
7 L042 42 2.59, 2.608 -2.38 AS/NZS 2891.7.1
8 L012 133 2.6, 2.599 -2.33 AS/NZS 2891.7.1
9 L020 23 2.601, 2.6 -2.24 AS/NZS 2891.7.1
10 L042 228 2.603, 2.601 -2.10 AS/NZS 2891.7.1
11 L006 106 2.599, 2.606 -2.06 AS/NZS 2891.7.1
12 L039 14 2.602, 2.605 -1.97 AS/NZS 2891.7.1
13 L007 36 2.604, 2.604 -1.92 AS/NZS 2891.7.1
14 L020 45 2.606, 2.607 -1.69 AS/NZS 2891.7.1
15 L001 190 2.609, 2.606 -1.60 AS/NZS 2891.7.1
16 L001 101 2.607, 2.615 -1.28 AS/NZS 2891.7.1
17 L023 46 2.612, 2.611 -1.23 AS/NZS 2891.7.1
18 L026 29 2.606, 2.62 -1.10 AS/NZS 2891.7.1
19 L159 159 2.609, 2.618 -1.05 AS/NZS 2891.7.1
20 L001 125 2.615, 2.613 -1.01 AS/NZS 2891.7.1
21 L012 159 2.609, 2.619 -1.01 AS/NZS 2891.7.1
22 L001 105 2.615, 2.615 -0.91 AS/NZS 2891.7.1
23 L005 #176 2.618, 2.614 -0.82 AS/NZS 2891.7.1
24 L026 21 2.614, 2.619 -0.78 AS/NZS 2891.7.1
25 L012 10 2.615, 2.618 -0.78 AS/NZS 2891.7.1
26 L023 202 2.62, 2.614 -0.73 AS/NZS 2891.7.1
27 L023 40 2.612, 2.622 -0.73 0
28 L022 147 2.622, 2.613 -0.69 AS/NZS 2891.7.1
29 L012 75 2.618, 2.617 -0.69 AS/NZS 2891.7.1
30 L021 249 2.619, 2.616 -0.69 AS/NZS 2891.7.1
31 L026 247 2.617, 2.62 -0.59 AS/NZS 2891.7.1
32 L002 216 2.619, 2.618 -0.59 AS/NZS 2891.7.1
33 L248 248 2.619, 2.618 -0.59 AS/NZS 2891.7.1
34 L012 248 2.619, 2.618 -0.59 AS/NZS 2891.7.1
35 L012 209 2.617, 2.621 -0.55 AS/NZS 2891.7.1
36 L012 72 2.619, 2.619 -0.55 AS/NZS 2891.7.1
37 L042 245 2.628, 2.613 -0.41 AS/NZS 2891.7.1
38 L012 221 2.619, 2.623 -0.37 AS/NZS 2891.7.1
39 L057 143 2.619, 2.623 -0.37 AS/NZS 2891.7.1
40 L048 226 2.627, 2.618 -0.23 AS/NZS 2891.7.1
41 L048 150 2.627, 2.618 -0.23 AS/NZS 2891.7.1
42 L016 240 2.619, 2.626 -0.23 AS/NZS 2891.7.1
43 L032 56 2.624, 2.621 -0.23 AS/NZS 2891.7.1
44 L019 148 2.622, 2.623 -0.23 0
45 L026 137 2.63, 2.616 -0.18 AS/NZS 2891.7.1
46 L029 90 2.623, 2.623 -0.18 AS/NZS 2891.7.1
47 L052 162 2.626, 2.621 -0.14 AS/NZS 2891.7.1
48 L017 47 2.624, 2.623 -0.14 AS/NZS 2891.7.1
Page | 49 AAPA Proficiency 2018 v1.2
49 L023 39 2.627, 2.621 -0.09 AS/NZS 2891.7.1
50 L012 127 2.621, 2.627 -0.09 AS/NZS 2891.7.1
51 L031 35 2.613, 2.635 -0.09
ASTM D2041/D2041M
2011
52 L021 52 2.62, 2.628 -0.09 AS/NZS 2891.7.1
53 L038 69 2.625, 2.623 -0.09 AS/NZS 2891.7.1
54 L033 180 2.627, 2.622 -0.05 AS/NZS 2891.7.1
55 L033 180 2.627, 2.622 -0.05 AS/NZS 2891.7.1
56 L003 7472634 2.621, 2.628 -0.05 AS/NZS 2891.7.1
57 L025 222,30 2.626, 2.625 0.05 AS/NZS 2891.7.1
58 L004 145 2.626, 2.625 0.05 AS/NZS 2891.7.1
59 L004 145 2.626, 2.625 0.05 AS/NZS 2891.7.1
60 L050 253 2.622, 2.63 0.09 AS/NZS 2891.7.1
61 L029 191 2.626, 2.626 0.09 AS/NZS 2891.7.1
62 L008 218 2.626, 2.626 0.09 AS/NZS 2891.7.1
63 L038 146 2.629, 2.623 0.09 AS/NZS 2891.7.1
64 L011 129 2.626, 2.627 0.14 AS 2891.7.3
65 L021 203 2.629, 2.625 0.18 AS/NZS 2891.7.1
66 L019 186 2.631, 2.625 0.27 AS/NZS 2891.7.1
67 L013 188 2.627, 2.631 0.37 AS/NZS 2891.7.1
68 L050 160 2.63, 2.628 0.37 AS/NZS 2891.7.1
69 L048 230 2.634, 2.624 0.37 AS/NZS 2891.7.1
70 L038 223 2.635, 2.624 0.41 AS/NZS 2891.7.1
71 L009 #119 2.627, 2.632 0.41 AS/NZS 2891.7.1
72 L026 13 2.634, 2.626 0.46 AS/NZS 2891.7.1
73 L038 157 2.631, 2.63 0.50 AS/NZS 2891.7.1
74 L058 163 2.635, 2.627 0.55 AS/NZS 2891.7.1
75 L009 199 2.629, 2.633 0.55 AS/NZS 2891.7.1
76 L018 19 2.632, 2.63 0.55 AS/NZS 2891.7.1
77 L018 19 2.632, 2.63 0.55 AS/NZS 2891.7.1
78 L014 214 2.636, 2.627 0.59 AS/NZS 2891.7.1
79 L053 144 2.631, 2.632 0.59 AS/NZS 2891.7.1
80 L027 134 2.63, 2.633 0.59 AS/NZS 2891.7.1
81 L011 227 2.634, 2.63 0.64 AS 2891.7.3
82 L012 154 2.634, 2.631 0.69 AS/NZS 2891.7.1
83 L013 236 2.634, 2.631 0.69 AS/NZS 2891.7.1
84 L032 225 2.633, 2.632 0.69 AS/NZS 2891.7.1
85 L050 50 2.628, 2.637 0.69 AS/NZS 2891.7.1
86 L022 217 2.631, 2.635 0.73 AS/NZS 2891.7.1
87 L056 206 2.638, 2.629 0.78 AS/NZS 2891.7.1
88 L051 11 2.63, 2.638 0.82 AS/NZS 2891.7.1
89 L038 170 2.63, 2.638 0.82 AS/NZS 2891.7.1
90 L011 196 2.636, 2.632 0.82 AS 2891.7.3
91 L055 71 2.635, 2.635 0.91 AS/NZS 2891.7.1
92 L011 123 2.639, 2.631 0.91 AS 2891.7.3
93 L022 197 2.638, 2.633 0.96 AS/NZS 2891.7.1
94 L022 234 2.637, 2.635 1.01 AS/NZS 2891.7.1
95 L056 68 2.635, 2.637 1.01 AS/NZS 2891.7.1
96 L051 15 2.639, 2.633 1.01 AS/NZS 2891.7.1
97 L048 229 2.638, 2.635 1.05 AS/NZS 2891.7.1
98 L011 208 2.635, 2.638 1.05 AS 2891.7.3
99 L038 135 2.636, 2.639 1.14 AS/NZS 2891.7.1
Page | 50 AAPA Proficiency 2018 v1.2
100 L019 67 2.639, 2.642 1.42 AS/NZS 2891.7.1
101 L024 126 2.637, 2.645 1.46 AS/NZS 2891.7.1
102 L011 183 2.641, 2.645 1.65 AS 2891.7.3
103 L056 7 2.65, 2.647 2.15 AS/NZS 2891.7.1
104 L049 88 2.661, 2.648 2.70 AS/NZS 2891.7.1
105 L027 130 2.666, 2.664 3.66 AS/NZS 2891.7.1
106 L047 93
107 L047 239
108 L043 20
109 L043 174
110 L017 59
111 L044 142
Avg 2.62
STD 0.03
Max 2.67
Min 2.36
Median 2.63
No. data 210
Q1 2.617
Q3 2.632
IQR 0.015
NormIQR 0.011
RobustCV 0.42
U of Med 0.0009
Page | 51 AAPA Proficiency 2018 v1.2
Table 22: z-scores: Stream 1 - Asphalt Testing: Compacted Density – Marshall - 50 blow, average of duplicate test
(t/m3)
Position LAB ID Sample Number Result z score Test Method
1 L048 229 2.368, 2.366 -3.07 AS/NZS 2891.9.2
2 L022 147 2.357, 2.382 -2.94 AS/NZS 2891.9.2
3 L026 21 2.386, 2.391 -1.93 AS/NZS 2891.9.2
4 L049 88 2.381, 2.399 -1.85 AS/NZS 2891.9.2
5 L048 226 2.375, 2.408 -1.77 AS/NZS 2891.9.2
6 L048 150 2.375, 2.408 -1.77 AS/NZS 2891.9.2
7 L022 197 2.39, 2.398 -1.64 AS/NZS 2891.9.2
8 L023 39 2.402, 2.396 -1.38 AS/NZS 2891.9.2
9 L007 36 2.401, 2.401 -1.27 AS/NZS 2891.9.2
10 L021 203 2.4, 2.403 -1.24 AS/NZS 2891.9.2
11 L022 217 2.398, 2.406 -1.22 AS/NZS 2891.9.2
12 L022 234 2.404, 2.403 -1.14 AS/NZS 2891.9.2
13 L031 35 2.401, 2.407 -1.11 AS/NZS 2891.9.2
14 L023 40 2.412, 2.397 -1.08 AS/NZS 2891.9.2
15 L039 14 2.396, 2.414 -1.06 AS/NZS 2891.9.2
16 L048 233 2.401, 2.411 -1.01 AS/NZS 2891.9.2
17 L042 245 2.406, 2.412 -0.85 AS/NZS 2891.9.2
18 L005 #176 2.406, 2.417 -0.71 Q306B
19 L021 52 2.41, 2.414 -0.69 AS/NZS 2891.9.2
20 L023 202 2.412, 2.413 -0.66 AS/NZS 2891.9.2
21 L026 247 2.406, 2.423 -0.56 AS/NZS 2891.9.2
22 L027 130 2.41, 2.419 -0.56 AS/NZS 2891.9.2
23 L057 143 2.416, 2.414 -0.53 AS/NZS 2891.9.2
24 L012 133 2.426, 2.409 -0.40 AS/NZS 2891.9.2
25 L029 191 2.423, 2.413 -0.37 AS/NZS 2891.9.2
26 L058 163 2.421, 2.419 -0.26 AS/NZS 2891.9.2
27 L023 46 2.429, 2.413 -0.21 AS/NZS 2891.9.2
28 L056 68 2.419, 2.425 -0.16 AS/NZS 2891.9.2
29 L029 90 2.42, 2.424 -0.16 AS/NZS 2891.9.2
30 L005 #167 2.425, 2.419 -0.16 Q306B
31 L002 216 2.424, 2.42 -0.16 AS/NZS 2891.9.2
32 L004 145 2.425, 2.42 -0.13 AS/NZS 2891.9.2
33 L004 145 2.425, 2.42 -0.13 AS/NZS 2891.9.2
34 L027 134 2.423, 2.422 -0.13 AS/NZS 2891.9.2
35 L024 187 2.427, 2.421 -0.05 AS/NZS 2891.9.2
36 L056 7 2.421, 2.428 -0.03 AS/NZS 2891.9.2
37 L012 10 2.427, 2.424 0.03 AS/NZS 2891.9.2
38 L159 159 2.429, 2.422 0.03 AS/NZS 2891.9.2
39 L012 159 2.429, 2.422 0.03 AS/NZS 2891.9.2
40 L012 154 2.427, 2.425 0.05 AS/NZS 2891.9.2
41 L248 248 2.428, 2.425 0.08 AS/NZS 2891.9.2
42 L012 248 2.428, 2.425 0.08 AS/NZS 2891.9.2
43 L006 106 2.422, 2.433 0.13 AS/NZS 2891.9.2
44 L011 208 2.428, 2.427 0.13 AS/NZS 2891.9.2
45 L026 29 2.434, 2.422 0.16 AS/NZS 2891.9.2
46 L008 218 2.429, 2.429 0.21 AS/NZS 2891.9.2
47 L003 7472634 2.436, 2.422 0.21 AS/NZS 2891.9.2
48 L026 137 2.42, 2.439 0.24 AS/NZS 2891.9.2
Page | 52 AAPA Proficiency 2018 v1.2
49 L021 249 2.431, 2.428 0.24 AS/NZS 2891.9.2
50 L011 196 2.429, 2.433 0.32 AS/NZS 2891.9.2
51 L011 123 2.435, 2.431 0.42 AS/NZS 2891.9.2
52 L056 206 2.439, 2.429 0.48 AS/NZS 2891.9.2
53 L011 183 2.433, 2.437 0.53 AS/NZS 2891.9.2
54 L038 146 2.436, 2.437 0.61 AS/NZS 2891.9.2
55 L026 13 2.445, 2.43 0.66 AS/NZS 2891.9.2
56 L025 222,30 2.436, 2.439 0.66 AS/NZS 2891.9.2
57 L050 253 2.438, 2.441 0.77 AS/NZS 2891.9.2
58 L016 240 2.432, 2.449 0.82 AS/NZS 2891.9.2
59 L024 126 2.445, 2.441 0.95 AS/NZS 2891.9.2
60 L012 75 2.443, 2.444 0.98 AS/NZS 2891.9.2
61 L013 188 2.441, 2.449 1.06 AS/NZS 2891.9.2
62 L012 221 2.438, 2.452 1.06 AS/NZS 2891.9.2
63 L009 199 2.442, 2.452 1.16 AS/NZS 2891.9.2
64 L042 228 2.433, 2.462 1.19 AS/NZS 2891.9.2
65 L009 #119 2.443, 2.453 1.22 AS/NZS 2891.9.2
66 L012 72 2.449, 2.453 1.38 AS/NZS 2891.9.2
67 L018 19 2.453, 2.457 1.59 AS/NZS 2891.9.2
68 L018 19 2.453, 2.457 1.59 AS/NZS 2891.9.2
69 L012 209 2.453, 2.458 1.61 AS/NZS 2891.9.2
70 L033 180 2.456, 2.458 1.69 AS/NZS 2891.9.2
71 L033 180 2.456, 2.458 1.69 AS/NZS 2891.9.2
72 L012 127 2.449, 2.467 1.75 AS/NZS 2891.9.2
73 L041 237 7.8, 7.9 286.99 AS/NZS 2891.9.2
74 L048 230 2.409, 20401 539554.49 AS/NZS 2891.9.2
75 L054-A H19.048.ASP
76 L054-B H19-049-ASP
77 L020 23
78 L014 214
79 L042 42
80 L055 71
81 L020 45
82 L032 56
83 L032 225
84 L052 162
85 L051 11
86 L053 144
87 L050 160
88 L013 236
89 L051 15
90 L050 50
91 L047 93
92 L047 239
93 L017 47
94 L043 20
95 L043 174
96 L038 69
97 L038 135
98 L038 157
99 L038 170
Page | 53 AAPA Proficiency 2018 v1.2
100 L038 223
101 L017 59
102 L019 67
103 L019 148
104 L019 186
105 L011 227
106 L011 129
107 L001 101
108 L001 105
109 L001 125
110 L001 190
111 L044 142
Avg 140.32
STD 1676.75
Max 20401.00
Min 2.36
Median 2.43
No. data 148
Q1 2.412
Q3 2.437
IQR 0.025
NormIQR 0.019
RobustCV 0.78
U of Med 0.0019
Page | 54 AAPA Proficiency 2018 v1.2
Table 23: z-scores: Stream 1 - Asphalt Testing: Compacted height Marshall specimens – average of duplicate tests
Position LAB ID Sample Number Result z score Test Method
1 L023 202 60, 60 -2.70 AS/NZS 2891.9.2
2 L012 127 60, 60 -2.70 AS/NZS 2891.9.2
3 L012 75 60, 60 -2.70 AS/NZS 2891.9.2
4 L012 72 61, 61 -2.02 AS/NZS 2891.9.2
5 L016 240 60.7, 61.4 -1.99 AS/NZS 2891.9.2
6 L005 #176 62, 62 -1.35 Q306B
7 L018 19 62.4, 62.4 -1.08 AS/NZS 2891.9.2
8 L018 19 62.4, 62.4 -1.08 AS/NZS 2891.9.2
9 L031 35 62.5, 62.3 -1.08 AS/NZS 2891.9.2
10 L012 221 62, 63 -1.01 AS/NZS 2891.9.2
11 L012 209 62, 63 -1.01 AS/NZS 2891.9.2
12 L008 218 62, 63 -1.01 AS/NZS 2891.9.2
13 L024 187 64, 62 -0.67 AS/NZS 2891.9.2
14 L024 126 61, 65 -0.67 AS/NZS 2891.9.2
15 L056 7 63, 63 -0.67 AS/NZS 2891.9.2
16 L012 154 63, 63 -0.67 AS/NZS 2891.9.2
17 L248 248 63, 63 -0.67 AS/NZS 2891.9.2
18 L033 180 63, 63 -0.67 AS/NZS 2891.9.2
19 L033 180 63, 63 -0.67 AS/NZS 2891.9.2
20 L012 248 63, 63 -0.67 AS/NZS 2891.9.2
21 L011 196 62.9, 63.2 -0.64 AS/NZS 2891.9.2
22 L011 123 62.9, 63.3 -0.61 AS/NZS 2891.9.2
23 L011 208 63.3, 63.2 -0.51 AS/NZS 2891.9.2
24 L025 222,30 63.4, 63.2 -0.47 AS/NZS 2891.9.2
25 L006 106 63.4, 63.2 -0.47 AS/NZS 2891.9.2
26 L011 183 63.2, 63.4 -0.47 AS/NZS 2891.9.2
27 L029 90 63.2, 63.7 -0.37 AS/NZS 2891.9.2
28 L026 137 63, 64 -0.34 AS/NZS 2891.9.2
29 L041 237 63.6, 63.7 -0.24 AS/NZS 2891.9.2
30 L007 36 64.2, 63.7 -0.03 AS/NZS 2891.9.2
31 L026 247 64, 64 0.00 AS/NZS 2891.9.2
32 L029 191 64, 64 0.00 AS/NZS 2891.9.2
33 L002 216 64, 64 0.00 AS/NZS 2891.9.2
34 L003 7472634 64, 64 0.00 AS/NZS 2891.9.2
35 L048 233 64, 64 0.00 AS/NZS 2891.9.2
36 L048 229 64, 64 0.00 AS/NZS 2891.9.2
37 L039 14 65.1, 63.6 0.24 AS/NZS 2891.9.2
38 L027 130 64.3, 64.4 0.24 AS/NZS 2891.9.2
39 L027 134 64.3, 64.4 0.24 AS/NZS 2891.9.2
40 L038 146 64.5, 64.3 0.27 AS/NZS 2891.9.2
41 L026 29 64, 65 0.34 AS/NZS 2891.9.2
42 L026 13 65, 64 0.34 AS/NZS 2891.9.2
43 L023 46 64, 65 0.34 AS/NZS 2891.9.2
44 L005 #167 63, 66 0.34 Q306B
45 L012 133 64, 65 0.34 AS/NZS 2891.9.2
46 L056 206 64, 65 0.34 AS/NZS 2891.9.2
47 L159 159 64, 65 0.34 AS/NZS 2891.9.2
48 L012 159 64, 65 0.34 AS/NZS 2891.9.2
Page | 55 AAPA Proficiency 2018 v1.2
49 L022 147 65.4, 63.7 0.37 AS/NZS 2891.9.2
50 L058 163 64.7, 64.8 0.51 AS/NZS 2891.9.2
51 L050 253 64.6, 65.1 0.57 AS/NZS 2891.9.2
52 L023 39 66, 64 0.67 AS/NZS 2891.9.2
53 L021 249 65, 65 0.67 AS/NZS 2891.9.2
54 L012 10 65, 65 0.67 AS/NZS 2891.9.2
55 L048 230 65, 65 0.67 AS/NZS 2891.9.2
56 L049 88 65.1, 65 0.71 AS/NZS 2891.9.2
57 L023 40 65, 66 1.01 AS/NZS 2891.9.2
58 L004 145 66, 65 1.01 AS/NZS 2891.9.2
59 L048 226 66, 65 1.01 AS/NZS 2891.9.2
60 L004 145 66, 65 1.01 AS/NZS 2891.9.2
61 L022 197 65.7, 65.6 1.11 AS/NZS 2891.9.2
62 L048 150 66, 65.8 1.28 AS/NZS 2891.9.2
63 L026 21 65, 67 1.35 AS/NZS 2891.9.2
64 L056 68 66, 66 1.35 AS/NZS 2891.9.2
65 L021 52 66, 66 1.35 AS/NZS 2891.9.2
66 L021 203 66, 66 1.35 AS/NZS 2891.9.2
67 L042 245 67, 65 1.35 AS/NZS 2891.9.2
68 L057 143 67.3, 66.9 2.09 AS/NZS 2891.9.2
69 L042 228 68.5, 66 2.19 AS/NZS 2891.9.2
70 L054-A H19.048.ASP
71 L054-B H19-049-ASP
72 L020 23
73 L014 214
74 L042 42
75 L055 71
76 L020 45
77 L032 56
78 L032 225
79 L052 162
80 L022 234
81 L051 11
82 L053 144
83 L022 217
84 L050 160
85 L013 188
86 L013 236
87 L009 199
88 L051 15
89 L050 50
90 L047 93
91 L047 239
92 L017 47
93 L043 20
94 L043 174
95 L038 69
96 L038 135
97 L038 157
98 L038 170
99 L038 223
Page | 56 AAPA Proficiency 2018 v1.2
100 L017 59
101 L019 67
102 L019 148
103 L019 186
104 L011 227
105 L011 129
106 L001 101
107 L001 105
108 L001 125
109 L001 190
110 L009 #119
111 L044 142
Avg 63.93
STD 1.61
Max 68.50
Min 60.00
Median 64.00
No. data 138
Q1 63.000
Q3 65.000
IQR 2.000
NormIQR 1.483
RobustCV 2.32
U of Med 0.1582
Page | 57 AAPA Proficiency 2018 v1.2
Table 24: z-scores: Stream 1 - Asphalt Testing: Stability – Marshall (kN) – average of duplicate tests
Position LAB ID Sample Number Result z score Test Method
1 L027 130 7.9, 7.3 -1.23 AS/NZS 2891.5
2 L027 134 7.9, 7.3 -1.23 AS/NZS 2891.5
3 L042 245 7, 8.3 -1.21 AS/NZS 2891.5
4 L022 147 7.4, 8.1 -1.16 AS/NZS 2891.5
5 L041 237 7.8, 7.9 -1.12 AS/NZS 2891.5
6 L159 159 8.4, 7.9 -0.99 AS/NZS 2891.5
7 L012 159 8.4, 7.9 -0.99 AS/NZS 2891.5
8 L011 196 8, 8.6 -0.92 AS/NZS 2891.5
9 L026 137 8.2, 8.6 -0.88 AS/NZS 2891.5
10 L011 123 8.2, 8.6 -0.88 AS/NZS 2891.5
11 L012 154 8.6, 8.3 -0.86 AS/NZS 2891.5
12 L002 216 7.8, 9.1 -0.86 AS/NZS 2891.5
13 L011 208 8.3, 8.6 -0.86 AS/NZS 2891.5
14 L039 14 8.4, 8.8 -0.79 AS/NZS 2891.5
15 L005 #176 8.3, 9 -0.77 Q305
16 L011 183 8.5, 8.8 -0.77 AS/NZS 2891.5
17 L012 72 8.8, 8.8 -0.70 AS/NZS 2891.5
18 L012 133 9, 8.7 -0.68 AS/NZS 2891.5
19 L031 35 9.1, 8.9 -0.61 ASTM D6927 - 2015
20 L004 145 8.7, 9.4 -0.59 AS/NZS 2891.5
21 L012 221 8.9, 9.3 -0.57 AS/NZS 2891.5
22 L003 7472634 8.9, 9.4 -0.55 AS/NZS 2891.5
23 L058 163 9.6, 9.4 -0.39 AS/NZS 2891.5
24 L004 145 9.245, 9.775 -0.39 AS/NZS 2891.5
25 L026 247 9.6, 9.6 -0.35 AS/NZS 2891.5
26 L026 21 9.7, 9.7 -0.31 AS/NZS 2891.5
27 L022 234 9.9, 9.5 -0.31 AS/NZS 2891.5
28 L024 126 10, 9.4 -0.31 AS/NZS 2891.5
29 L022 197 10.4, 10 -0.09 AS/NZS 2891.5
30 L022 217 9.8, 10.7 -0.07 AS/NZS 2891.5
31 L005 #167 10, 10.6 -0.04 Q305
32 L024 187 10.6, 10.2 0.00 AS/NZS 2891.5
33 L048 233 10.5, 10.7 0.09 AS/NZS 2891.5
34 L048 226 10, 11.4 0.13 AS/NZS 2891.5
35 L048 150 10, 11.4 0.13 AS/NZS 2891.5
36 L048 230 11.2, 10.4 0.18 AS/NZS 2891.5
37 L012 127 10.5, 11.3 0.22 AS/NZS 2891.5
38 L012 75 10.5, 11.3 0.22 AS/NZS 2891.5
39 L042 228 10.4, 11.7 0.29 AS/NZS 2891.5
40 L026 13 10.7, 11.5 0.31 AS/NZS 2891.5
41 L018 19 11.1, 11.4 0.37 AS/NZS 2891.5
42 L012 209 11.8, 11.1 0.46 AS/NZS 2891.5
43 L248 248 12.2, 10.7 0.46 AS/NZS 2891.5
44 L012 248 12.2, 10.7 0.46 AS/NZS 2891.5
45 L012 10 11.9, 11.1 0.48 AS/NZS 2891.5
46 L057 143 10.9, 12.1 0.48 AS/NZS 2891.5
47 L033 180 11, 12.2 0.53 AS/NZS 2891.5
48 L033 180 11, 12.2 0.53 AS/NZS 2891.5
Page | 58 AAPA Proficiency 2018 v1.2
49 L029 191 11.3, 11.9 0.53 AS/NZS 2891.5
50 L018 19 11.5, 12.2 0.64 AS/NZS 2891.5
51 L048 229 10.7, 13.2 0.68 AS/NZS 2891.5
52 L008 218 12, 12 0.70 AS/NZS 2891.5
53 L013 188 12.2, 11.9 0.72 AS/NZS 2891.5
54 L038 146 12.3, 12.7 0.92 AS/NZS 2891.5
55 L056 7 11.5, 13.7 0.97 AS/NZS 2891.5
56 L025 222,30 12.4, 13.6 1.14 AS/NZS 2891.5
57 L029 90 13.7, 12.8 1.25 AS/NZS 2891.5
58 L056 206 13.8, 12.8 1.27 AS/NZS 2891.5
59 L026 29 14, 12.7 1.29 AS/NZS 2891.5
60 L016 240 13.4, 13.3 1.29 AS/NZS 2891.5
61 L049 88 12.6, 14.2 1.32 AS/NZS 2891.5
62 L056 68 12.9, 15.4 1.65 AS/NZS 2891.5
63 L050 253 14.6, 14.6 1.84 AS/NZS 2891.5
64 L054-A H19.048.ASP
65 L054-B H19-049-ASP
66 L020 23
67 L014 214
68 L042 42
69 L055 71
70 L023 202
71 L023 39
72 L023 40
73 L023 46
74 L020 45
75 L032 56
76 L032 225
77 L052 162
78 L051 11
79 L053 144
80 L021 52
81 L021 203
82 L021 249
83 L050 160
84 L013 236
85 L009 199
86 L006 106
87 L007 36
88 L051 15
89 L050 50
90 L047 93
91 L047 239
92 L017 47
93 L043 20
94 L043 174
95 L038 69
96 L038 135
97 L038 157
98 L038 170
99 L038 223
Page | 59 AAPA Proficiency 2018 v1.2
100 L017 59
101 L019 67
102 L019 148
103 L019 186
104 L011 227
105 L011 129
106 L001 101
107 L001 105
108 L001 125
109 L001 190
110 L009 #119
111 L044 142
Avg 10.40
STD 1.89
Max 15.40
Min 7.00
Median 10.40
No. data 126
Q1 8.800
Q3 11.875
IQR 3.075
NormIQR 2.279
RobustCV 21.92
U of Med 0.2545
Page | 60 AAPA Proficiency 2018 v1.2
Table 25: z-scores: Stream 1 - Asphalt Testing: Flow – Marshall (mm) – average of duplicate tests
Position LAB ID Sample Number Result z score Test Method
1 L049 88 1.7, 1 -2.32 AS/NZS 2891.5
2 L024 126 1.7, 1.8 -1.72 AS/NZS 2891.5
3 L057 143 2, 1.7 -1.57 AS/NZS 2891.5
4 L024 187 2.1, 2 -1.27 AS/NZS 2891.5
5 L022 234 2.4, 2 -1.05 AS/NZS 2891.5
6 L058 163 2.2, 2.2 -1.05 AS/NZS 2891.5
7 L022 217 2.3, 2.2 -0.97 AS/NZS 2891.5
8 L027 130 2.2, 2.4 -0.90 AS/NZS 2891.5
9 L027 134 2.2, 2.4 -0.90 AS/NZS 2891.5
10 L022 197 2.3, 2.4 -0.82 AS/NZS 2891.5
11 L012 209 2.3, 2.4 -0.82 AS/NZS 2891.5
12 L038 146 2.4, 2.3 -0.82 AS/NZS 2891.5
13 L002 216 2.4, 2.4 -0.75 AS/NZS 2891.5
14 L004 145 2.5, 2.3 -0.75 AS/NZS 2891.5
15 L012 10 2.6, 2.3 -0.67 AS/NZS 2891.5
16 L004 145 2.5, 2.4 -0.67 AS/NZS 2891.5
17 L042 228 2.7, 2.2 -0.67 AS/NZS 2891.5
18 L008 218 2.5, 2.5 -0.60 AS/NZS 2891.5
19 L033 180 2.4, 2.6 -0.60 AS/NZS 2891.5
20 L033 180 2.4, 2.6 -0.60 AS/NZS 2891.5
21 L003 7472634 2.4, 2.8 -0.45 AS/NZS 2891.5
22 L050 253 2.7, 2.5 -0.45 AS/NZS 2891.5
23 L012 127 2.7, 2.6 -0.37 AS/NZS 2891.5
24 L042 245 2.6, 2.9 -0.22 AS/NZS 2891.5
25 L005 #176 2.7, 2.9 -0.15 Q305
26 L048 226 2.8, 2.8 -0.15 AS/NZS 2891.5
27 L048 150 2.8, 2.8 -0.15 AS/NZS 2891.5
28 L039 14 2.9, 2.8 -0.07 AS/NZS 2891.5
29 L048 230 2.9, 2.8 -0.07 AS/NZS 2891.5
30 L048 233 2.7, 3 -0.07 AS/NZS 2891.5
31 L031 35 2.75, 3 -0.04 ASTM D6927 - 2015
32 L013 188 2.9, 2.9 0.00 AS/NZS 2891.5
33 L012 159 2.9, 2.9 0.00 AS/NZS 2891.5
34 L022 147 3, 2.9 0.07 AS/NZS 2891.5
35 L159 159 3, 2.9 0.07 AS/NZS 2891.5
36 L018 19 3, 2.9 0.07 AS/NZS 2891.5
37 L018 19 3, 2.9 0.07 AS/NZS 2891.5
38 L016 240 3, 3.1 0.22 AS/NZS 2891.5
39 L029 191 3.2, 2.9 0.22 AS/NZS 2891.5
40 L005 #167 3.6, 2.5 0.22 Q305
41 L048 229 3.2, 2.9 0.22 AS/NZS 2891.5
42 L012 221 3.1, 3.3 0.45 AS/NZS 2891.5
43 L056 206 3.4, 3 0.45 AS/NZS 2891.5
44 L041 237 3.2, 3.3 0.52 AS/NZS 2891.5
45 L011 123 3.1, 3.4 0.52 AS/NZS 2891.5
46 L026 21 3.3, 3.3 0.60 AS/NZS 2891.5
47 L012 72 3.2, 3.4 0.60 AS/NZS 2891.5
48 L011 196 3.2, 3.4 0.60 AS/NZS 2891.5
Page | 61 AAPA Proficiency 2018 v1.2
49 L012 248 3.3, 3.3 0.60 AS/NZS 2891.5
50 L248 248 3.3, 3.4 0.67 AS/NZS 2891.5
51 L011 183 3.3, 3.5 0.75 AS/NZS 2891.5
52 L056 68 3.3, 3.6 0.82 AS/NZS 2891.5
53 L011 208 3.3, 3.6 0.82 AS/NZS 2891.5
54 L012 75 3.7, 3.3 0.90 AS/NZS 2891.5
55 L026 29 3.5, 3.7 1.05 AS/NZS 2891.5
56 L056 7 3.5, 3.7 1.05 AS/NZS 2891.5
57 L012 154 3.9, 3.6 1.27 AS/NZS 2891.5
58 L026 247 3.9, 3.9 1.50 AS/NZS 2891.5
59 L025 222,30 4, 3.8 1.50 AS/NZS 2891.5
60 L026 13 4, 4.2 1.80 AS/NZS 2891.5
61 L029 90 3.8, 4.4 1.80 AS/NZS 2891.5
62 L012 133 4.5, 3.8 1.87 AS/NZS 2891.5
63 L026 137 4.4, 4.5 2.32 AS/NZS 2891.5
64 L054-A H19.048.ASP
65 L054-B H19-049-ASP
66 L020 23
67 L014 214
68 L042 42
69 L055 71
70 L023 202
71 L023 39
72 L023 40
73 L023 46
74 L020 45
75 L032 56
76 L032 225
77 L052 162
78 L051 11
79 L053 144
80 L021 52
81 L021 203
82 L021 249
83 L050 160
84 L013 236
85 L009 199
86 L006 106
87 L007 36
88 L051 15
89 L050 50
90 L047 93
91 L047 239
92 L017 47
93 L043 20
94 L043 174
95 L038 69
96 L038 135
97 L038 157
98 L038 170
99 L038 223
Page | 62 AAPA Proficiency 2018 v1.2
100 L017 59
101 L019 67
102 L019 148
103 L019 186
104 L011 227
105 L011 129
106 L001 101
107 L001 105
108 L001 125
109 L001 190
110 L009 #119
111 L044 142
Avg 2.92
STD 0.63
Max 4.50
Min 1.00
Median 2.90
No. data 126
Q1 2.400
Q3 3.300
IQR 0.900
NormIQR 0.667
RobustCV 23.01
U of Med 0.0745
Page | 63 AAPA Proficiency 2018 v1.2
Table 26: z-scores: Stream 1 - Asphalt Testing: Compacted Density – Gyratory – 80 cycles, average of duplicate test
(t/m3)
Position LAB ID Sample Number Result z score Test Method
1 L049 88 2.424, 0 -40.74 AS/NZS 2891.9.2
2 L022 147 2.32, 2.292 -3.61 AS/NZS 2891.9.2
3 L022 234 2.339, 2.321 -2.80 AS/NZS 2891.9.2
4 L022 197 2.325, 2.338 -2.75 AS/NZS 2891.9.2
5 L022 217 2.336, 2.337 -2.58 AS/NZS 2891.9.2
6 L056 206 2.337, 2.35 -2.34 AS/NZS 2891.9.2
7 L001 190 2.355, 2.352 -2.00 0
8 L056 7 2.36, 2.367 -1.66 AS/NZS 2891.9.2
9 L001 105 2.367, 2.36 -1.66 0
10 L001 101 2.369, 2.366 -1.53 0
11 L001 125 2.373, 2.373 -1.34 0
12 L052 162 2.367, 2.387 -1.20 0
13 L056 68 2.377, 2.389 -1.00 AS/NZS 2891.9.2
14 L050 160 2.389, 2.378 -0.98 0
15 L029 191 2.406, 2.377 -0.71 AS/NZS 2891.9.2
16 L048 233 2.392, 2.403 -0.51 AS/NZS 2891.9.2
17 L048 229 2.401, 2.394 -0.51 AS/NZS 2891.9.2
18 L058 163 2.389, 2.408 -0.48 AS/NZS 2891.9.2
19 L048 226 2.392, 2.409 -0.41 AS/NZS 2891.9.2
20 L042 245 2.407, 2.394 -0.41 AS/NZS 2891.9.2
21 L048 150 2.392, 2.409 -0.41 AS/NZS 2891.9.2
22 L020 45 2.401, 2.403 -0.36 0
23 L020 23 2.401, 2.405 -0.32 0
24 L051 15 2.418, 2.391 -0.27 0
25 L011 129 2.403, 2.409 -0.22 0
26 L248 248 2.42, 2.407 0.03 AS/NZS 2891.9.2
27 L048 230 2.416, 2.415 0.10 AS/NZS 2891.9.2
28 L002 216 2.403, 2.429 0.12 AS/NZS 2891.9.2
29 L011 227 2.412, 2.42 0.12 0
30 L025 222,30 2.42, 2.417 0.20 AS/NZS 2891.9.2
31 L039 14 2.414, 2.423 0.20 AS/NZS 2891.9.2
32 L011 208 2.422, 2.415 0.20 AS/NZS 2891.9.2
33 L011 196 2.418, 2.42 0.22 AS/NZS 2891.9.2
34 L029 90 2.42, 2.424 0.32 AS/NZS 2891.9.2
35 L011 183 2.417, 2.428 0.34 AS/NZS 2891.9.2
36 L032 225 2.422, 2.424 0.36 0
37 L011 123 2.422, 2.425 0.37 AS/NZS 2891.9.2
38 L003 7472634 2.413, 2.438 0.44 AS/NZS 2891.9.2
39 L038 146 2.423, 2.429 0.46 AS/NZS 2891.9.2
40 L016 240 2.433, 2.423 0.53 AS/NZS 2891.9.2
41 L042 42 2.429, 2.436 0.68 0
42 L050 253 2.436, 2.435 0.78 AS/NZS 2891.9.2
43 L032 56 2.441, 2.434 0.85 0
44 L012 72 2.437, 2.438 0.85 AS/NZS 2891.9.2
45 L050 50 2.421, 2.457 0.90 0
46 L031 35 2.459, 2.447 1.37 AS/NZS 2891.9.2
47 L005 #176 2.465, 2.453 1.58 Q306B
48 L042 228 2.467, 2.462 1.76 AS/NZS 2891.9.2
Page | 64 AAPA Proficiency 2018 v1.2
49 L013 236 2.476, 2.468 2.02 0
50 L018 19 2.493, 2.503 2.90 AS/NZS 2891.9.2
51 L018 19 2.493, 2.503 2.90 AS/NZS 2891.9.2
52 L026 137
53 L026 29
54 L054-A H19.048.ASP
55 L054-B H19-049-ASP
56 L026 247
57 L026 21
58 L026 13
59 L014 214
60 L055 71
61 L023 202
62 L023 39
63 L023 40
64 L023 46
65 L051 11
66 L041 237
67 L053 144
68 L021 52
69 L021 203
70 L021 249
71 L024 187
72 L024 126
73 L005 #167
74 L012 154
75 L012 10
76 L012 221
77 L012 133
78 L012 127
79 L012 209
80 L013 188
81 L009 199
82 L006 106
83 L007 36
84 L008 218
85 L047 93
86 L047 239
87 L004 145
88 L159 159
89 L033 180
90 L033 180
91 L017 47
92 L057 143
93 L012 75
94 L043 20
95 L043 174
96 L038 69
97 L038 135
98 L038 157
99 L038 170
Page | 65 AAPA Proficiency 2018 v1.2
100 L038 223
101 L017 59
102 L019 67
103 L019 148
104 L019 186
105 L027 130
106 L012 159
107 L012 248
108 L027 134
109 L004 145
110 L009 #119
111 L044 142
Avg 2.38
STD 0.24
Max 2.50
Min 0.00
Median 2.41
No. data 102
Q1 2.388
Q3 2.427
IQR 0.040
NormIQR 0.029
RobustCV 1.22
U of Med 0.0037
Page | 66 AAPA Proficiency 2018 v1.2
Table 27: z-scores: Stream 2 – Binder Recovery: Average of duplicate complex viscosity results (η*)
Position LAB ID Sample Number Result z score Test Method
1 L025 208 451 -3.22 ASTM D5404
2 L031 53 845 -1.62 ASTM D5404
3 L039 235 1180 -0.27 ASTM D5404
4 L039 235 1230 -0.06 ASTM D5404
5 L028 242 1244 -0.01 AGPT/T191
6 L028 149 1247 0.01 AGPT/T191
7 L015 184 1420 0.71 AGPT/T191
8 L015 231 1560 1.28 AGPT/T191
9 L049 92 1561 1.28 AGPT/T191
10 L015 232 1561 1.28 AGPT/T191
11 L029
12 L018
13 L048
Avg 1229.90
STD 353.11
Max 1561.00
Min 451.00
Median 1245.50
No. data 10
Q1 1192.500
Q3 1525.000
IQR 332.500
NormIQR 246.482
RobustCV 19.79
U of Med 97.689
Page | 67 AAPA Proficiency 2018 v1.2
Table 28: z-scores: Stream 2 – Binder Recovery: Optional: Capillary viscosity at 60 ⁰C
Position LAB ID Sample Number Result z score Test Method
1 L025 208 486 -1.34 AS/NZS 2341.2
2 L029 0 490.6 -1.33 AS/NZS 2341.2
3 L048 0 1212.4 0.00 AS/NZS 2341.2
4 L039 235 1220 0.01 AS/NZS 2341.2
5 L039 235 1220 0.01 AS/NZS 2341.2
6 L049 92
7 L028 149
8 L028 242
9 L018 0
10 L031 53
11 L015 184
12 L015 232
13 L015 231
Avg 925.80
STD 399.40
Max 1220.00
Min 486.00
Median 1212.40
No. data 5
Q1 490.600
Q3 1220.000
IQR 729.400
NormIQR 540.704
RobustCV 44.60
U of Med 303.064
Page | 68 AAPA Proficiency 2018 v1.2
Table 29: z-scores: Stream 2 – Binder Recovery: Average of duplicate complex viscosity results (η*)
Position LAB ID Sample Number Result z score Test Method
1 L039 235 191 -0.75 AGPT/T192
2 L039 235 193 -0.65 AGPT/T192
3 L028 242 202 -0.20 AGPT/T192
4 L028 149 205 -0.05 AGPT/T192
5 L018 0 205.5 -0.02 AGPT/T192
6 L049 92 206 0.00 AGPT/T192
7 L031 53 216 0.50 AGPT/T192
8 L025 208 219 0.65 AGPT/T192
9 L015 231 242 1.80 AGPT/T192
10 L015 184 252 2.30 AGPT/T192
11 L015 232 297 4.55 AGPT/T192
12 L029 0
13 L048 0
Avg 220.77
STD 31.58
Max 297.00
Min 191.00
Median 206.00
No. data 11
Q1 203.500
Q3 230.500
IQR 27.000
NormIQR 20.015
RobustCV 9.72
U of Med 7.563
Page | 69 AAPA Proficiency 2018 v1.2
Table 30: z-scores: Stream 2 – Binder Recovery: Capillary viscosity at 60 ⁰C
Position LAB ID Sample Number Result z score Test Method
1 L039 235 191.3 -0.92 AS/NZS 2341.2
2 L039 235 193 -0.67 AS/NZS 2341.2
3 L025 208 194 -0.51 AS/NZS 2341.2
4 L028 149 194.8 -0.39 AS/NZS 2341.2
5 L028 242 194.9 -0.38 AS/NZS 2341.2
6 L018 0 196.3 -0.17 AS/NZS 2341.2
7 L029 0 198.5 0.17 AS/NZS 2341.2
8 L049 92 201.1 0.56 AS/NZ 2341.2
9 L048 0 202.7 0.80 AS/NZS 2341.2
10 L015 232 206 1.30 AS/NZS 2341.2
11 L015 184 207 1.45 AS/NZS 2341.2
12 L015 231 210 1.90 AS/NZS 2341.2
13 L031 53
Avg 199.13
STD 6.14
Max 210.00
Min 191.30
Median 197.40
No. data 12
Q1 194.600
Q3 203.525
IQR 8.925
NormIQR 6.616
RobustCV 3.35
U of Med 2.394
Page | 70 AAPA Proficiency 2018 v1.2
Table 31: z-scores: Stream 3 – Coarse Aggregate: Particle Density – Apparent (t/m3)
Position LAB ID Sample Number Result z score Test Method
1 L012-5 1 -218.15 AS 1141.6.1
2 L005 2.68 -2.31 AS 1141.6.1
3 L034 2.684 -1.80 AS 1141.6.1
4 L001 2.69 -1.03 AS 1141.6.1
5 L038 2.692 -0.77 AS 1141.6.1
6 L021-3 2.693 -0.64 AS 1141.6.1
7 L045 2.693 -0.64 AS1141.6.2
8 L057 2.693 -0.64 AS 1141.6.1
9 L021-2 2.694 -0.51 AS 1141.6.1
10 L021-1 2.694 -0.51 AS 1141.6.1
11 L005 2.695 -0.39 AS 1141.6.1
12 L072 2.695 -0.39 AS 1141.6.1
13 L010 2.695 -0.39 AS 1141.6.1
14 L012-1 2.695 -0.39 AS 1141.6.1
15 L012-2 2.695 -0.39 AS 1141.6.1
16 L012-7 2.695 -0.39 AS 1141.6.1
17 L012-8 2.696 -0.26 AS 1141.6.1
18 L024 2.698 0.00 AS 1141.6.1
19 L133 2.698 0.00 AS 1141.6.1
20 L012-4 2.698 0.00 AS 1141.6.1
21 L027 2.698 0.00 AS 1141.6.2
22 L058 2.699 0.13 AS 1141.6.1
23 L008 2.7 0.26 AS 1141.6.1
24 L002 2.7 0.26 AS 1141.6.1
25 L018 2.702 0.51 AS 1141.6.1
26 L022 2.704 0.77 1141.6.2
27 L011 2.704 0.77 AS 1141.6.1
28 L012-3 2.706 1.03 AS 1141.6.1
29 L010 2.71 1.54 AS 1141.6.1
30 L013 2.71 1.54 AS 1141.6.1
31 L013 2.71 1.54 AS 1141.6.1
32 L010 2.71 1.54 AS 1141.6.1
33 L010 2.711 1.67 AS 1141.6.1
34 L159 2.711 1.67 AS 1141.6.1
35 L012-9 2.711 1.67 AS 1141.6.1
36 L027 2.756 7.45 AS1141.6.2
37 L046
38 L006
39 L007
40 L003
41 L009
42 L003
43 L031
44 L047
45 L004
46 L248
47 L154
48 L221
Page | 71 AAPA Proficiency 2018 v1.2
49 L012-6
50
L012-
10
51 L004
52 L009
53 L044
Avg 2.65
STD 0.28
Max 2.76
Min 1.00
Median 2.70
No. data 36
Q1 2.694
Q3 2.705
IQR 0.011
NormIQR 0.008
RobustCV 0.29
U of Med 0.002
Page | 72 AAPA Proficiency 2018 v1.2
Table 32: z-scores: Stream 3 – Coarse Aggregate: Particle Density – Dry Aggregate (t/m3))
Position LAB ID Sample Number Result z score Test Method
1 L012-5 1 -293.18 AS 1141.6.1
2 L038 2.613 -3.06 AS 1141.6.1
3 L034 2.616 -2.52 AS 1141.6.1
4 L005 2.62 -1.80 AS 1141.6.1
5 L011 2.621 -1.62 AS 1141.6.1
6 L010 2.624 -1.08 AS 1141.6.1
7 L057 2.624 -1.08 AS 1141.6.1
8 L012-1 2.624 -1.08 AS 1141.6.1
9 L021-3 2.625 -0.90 AS 1141.6.1
10 L012-2 2.625 -0.90 AS 1141.6.1
11 L024 2.626 -0.72 AS 1141.6.1
12 L012-8 2.626 -0.72 AS 1141.6.1
13 L021-2 2.628 -0.36 AS 1141.6.1
14 L159 2.628 -0.36 AS 1141.6.1
15 L012-9 2.628 -0.36 AS 1141.6.1
16 L001 2.63 0.00 AS 1141.6.1
17 L021-1 2.63 0.00 AS 1141.6.1
18 L008 2.63 0.00 AS 1141.6.1
19 L002 2.63 0.00 AS 1141.6.1
20 L013 2.63 0.00 AS 1141.6.1
21 L013 2.63 0.00 AS 1141.6.1
22 L022 2.631 0.18 1141.6.2
23 L045 2.631 0.18 AS1141.6.2
24 L072 2.631 0.18 AS 1141.6.1
25 L012-7 2.631 0.18 AS 1141.6.1
26 L058 2.632 0.36 AS 1141.6.1
27 L018 2.632 0.36 AS 1141.6.1
28 L005 2.634 0.72 AS 1141.6.1
29 L027 2.635 0.90 AS 1141.6.2
30 L010 2.639 1.62 AS 1141.6.1
31 L010 2.64 1.80 AS 1141.6.1
32 L010 2.64 1.80 AS 1141.6.1
33 L133 2.642 2.16 AS 1141.6.1
34 L012-3 2.642 2.16 AS 1141.6.1
35 L012-4 2.642 2.16 AS 1141.6.1
36 L027 2.707 13.85 AS1141.6.2
37 L046
38 L006
39 L007
40 L003
41 L009
42 L003
43 L031
44 L047
45 L004
46 L248
47 L154
48 L221
Page | 73 AAPA Proficiency 2018 v1.2
49 L012-6
50
L012-
10
51 L004
52 L009
53 L044
Avg 2.59
STD 0.27
Max 2.71
Min 1.00
Median 2.63
No. data 36
Q1 2.625
Q3 2.633
IQR 0.008
NormIQR 0.006
RobustCV 0.21
U of Med 0.001
Page | 74 AAPA Proficiency 2018 v1.2
Table 33: z-scores: Stream 3 – Coarse Aggregate: Particle Density – Saturated Surface Dry (t/m3)
Position LAB ID Sample Number Result z score Test Method
1 L012-5 1 -223.26 AS 1141.6.1
2 L005 2.63 -3.37 AS 1141.6.1
3 L034 2.641 -1.89 AS 1141.6.1
4 L038 2.642 -1.75 AS 1141.6.1
5 L001 2.65 -0.67 AS 1141.6.1
6 L021-3 2.65 -0.67 AS 1141.6.1
7 L002 2.65 -0.67 AS 1141.6.1
8 L010 2.65 -0.67 AS 1141.6.1
9 L057 2.65 -0.67 AS 1141.6.1
10 L012-1 2.65 -0.67 AS 1141.6.1
11 L011 2.651 -0.54 AS 1141.6.1
12 L012-2 2.651 -0.54 AS 1141.6.1
13 L012-8 2.652 -0.40 AS 1141.6.1
14 L021-2 2.653 -0.27 AS 1141.6.1
15 L024 2.653 -0.27 AS 1141.6.1
16 L021-1 2.654 -0.13 AS 1141.6.1
17 L045 2.655 0.00 AS1141.6.2
18 L072 2.655 0.00 AS 1141.6.1
19 L012-7 2.655 0.00 AS 1141.6.1
20 L005 2.657 0.27 AS 1141.6.1
21 L058 2.657 0.27 AS 1141.6.1
22 L022 2.658 0.40 1141.6.2
23 L159 2.658 0.40 AS 1141.6.1
24 L018 2.658 0.40 AS 1141.6.1
25 L012-9 2.658 0.40 AS 1141.6.1
26 L027 2.658 0.40 AS 1141.6.2
27 L008 2.66 0.67 AS 1141.6.1
28 L013 2.66 0.67 AS 1141.6.1
29 L013 2.66 0.67 AS 1141.6.1
30 L133 2.663 1.08 AS 1141.6.1
31 L012-4 2.663 1.08 AS 1141.6.1
32 L012-3 2.665 1.35 AS 1141.6.1
33 L010 2.666 1.48 AS 1141.6.1
34 L010 2.67 2.02 AS 1141.6.1
35 L010 2.67 2.02 AS 1141.6.1
36 L027 2.725 9.44 AS1141.6.2
37 L046
38 L006
39 L007
40 L003
41 L009
42 L003
43 L031
44 L047
45 L004
46 L248
47 L154
48 L221
Page | 75 AAPA Proficiency 2018 v1.2
49 L012-6
50
L012-
10
51 L004
52 L009
53 L044
Avg 2.61
STD 0.28
Max 2.73
Min 1.00
Median 2.66
No. data 36
Q1 2.650
Q3 2.660
IQR 0.010
NormIQR 0.007
RobustCV 0.28
U of Med 0.002
Page | 76 AAPA Proficiency 2018 v1.2
Table 34: z-scores: Stream 3 – Coarse Aggregate: Water Absorption (%)
Position LAB ID Sample Number Result z score Test Method
1 L027 0.64 -4.41 AS1141.6.2
2 L133 0.79 -2.43 AS 1141.6.1
3 L012-4 0.79 -2.43 AS 1141.6.1
4 L005 0.86 -1.51 AS 1141.6.1
5 L045 0.87 -1.38 AS1141.6.2
6 L027 0.89 -1.12 AS 1141.6.2
7 L001 0.9 -0.99 AS 1141.6.1
8 L021-2 0.9 -0.99 AS 1141.6.1
9 L021-1 0.9 -0.99 AS 1141.6.1
10 L005 0.9 -0.99 AS 1141.6.1
11 L008 0.9 -0.99 AS 1141.6.1
12 L002 0.9 -0.99 AS 1141.6.1
13 L072 0.9 -0.99 AS 1141.6.1
14 L012-3 0.9 -0.99 AS 1141.6.1
15 L012-7 0.9 -0.99 AS 1141.6.1
16 L058 0.95 -0.33 AS 1141.6.1
17 L034 0.96 -0.20 AS 1141.6.1
18 L057 0.97 -0.07 AS 1141.6.1
19 L012-8 0.98 0.07 AS 1141.6.1
20 L010 0.99 0.20 AS 1141.6.1
21 L012-1 0.99 0.20 AS 1141.6.1
22 L012-2 0.99 0.20 AS 1141.6.1
23 L010 1 0.33 AS 1141.6.1
24 L021-3 1 0.33 AS 1141.6.1
25 L018 1 0.33 AS 1141.6.1
26 L012-5 1 0.33 AS 1141.6.1
27 L010 1 0.33 AS 1141.6.1
28 L022 1.01 0.46 1141.6.2
29 L010 1.01 0.46 AS 1141.6.1
30 L024 1.03 0.72 AS 1141.6.1
31 L038 1.11 1.78 AS 1141.6.1
32 L159 1.17 2.57 AS 1141.6.1
33 L011 1.17 2.57 AS 1141.6.1
34 L012-9 1.17 2.57 AS 1141.6.1
35 L013 1.2 2.96 AS 1141.6.1
36 L013 1.2 2.96 AS 1141.6.1
37 L046
38 L006
39 L007
40 L003
41 L009
42 L003
43 L031
44 L047
45 L004
46 L248
47 L154
48 L221
Page | 77 AAPA Proficiency 2018 v1.2
49 L012-6
50
L012-
10
51 L004
52 L009
53 L044
Avg 0.97
STD 0.12
Max 1.20
Min 0.64
Median 0.98
No. data 36
Q1 0.900
Q3 1.003
IQR 0.103
NormIQR 0.076
RobustCV 7.79
U of Med 0.016
Page | 78 AAPA Proficiency 2018 v1.2
Table 35: z-scores: Stream 3 – Coarse Aggregate: Average least dimension by direct measurement (nominal 10mm
and greater)
Position LAB ID Sample Number Result z score Test Method
1 L045 8.7 -4.72 AS1141.20.1
2 L034 9.1 -2.02 AS1141.20
3 L021-2 9.2 -1.35 AS1141.20
4 L011 9.2 -1.35 AS1141.20
5 L046 9.3 -0.67 AS1141.20
6 L001 9.3 -0.67 AS1141.20
7 L021-3 9.3 -0.67 AS1141.20
8 L024 9.3 -0.67 AS1141.20
9 L012-8 9.3 -0.67 AS1141.20
10 L072 9.4 0.00 AS1141.20
11 L012-7 9.4 0.00 AS1141.20
12 L021-1 9.5 0.67 AS1141.20
13 L013 9.5 0.67 AS1141.20
14 L013 9.5 0.67 AS1141.20
15 L010 9.5 0.67 AS1141.20
16 L012-1 9.5 0.67 AS1141.20
17 L010 9.6 1.35 AS1141.20
18 L159 9.7 2.02 AS1141.20
19 L012-9 9.7 2.02 AS1141.20
20 L005 9.9 3.37 AS1141.20
21 L022
22 L010
23 L005
24 L006
25 L007
26 L008
27 L002
28 L003
29 L009
30 L003
31 L010
32 L058
33 L031
34 L047
35 L004
36 L248
37 L133
38 L154
39 L221
40 L057
41 L018
42 L038
43 L012-2
44 L012-3
45 L012-4
46 L012-5
47 L012-6
Page | 79 AAPA Proficiency 2018 v1.2
48
L012-
10
49 L027
50 L027
51 L004
52 L009
53 L044
Avg 9.40
STD 0.25
Max 9.90
Min 8.70
Median 9.40
No. data 20
Q1 9.300
Q3 9.500
IQR 0.200
NormIQR 0.148
RobustCV 1.58
U of Med 0.042
Page | 80 AAPA Proficiency 2018 v1.2
Table 36: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 26.5 mm
Position LAB ID Sample Number Result z score Test Method
1 L046 100 AS1141.11.1
2 L022 100 AS1141.11.1
3 L001 100 AS1141.11.1
4 L010 100 AS1141.11.1
5 L021-3 100 AS1141.11.1
6 L021-2 100 AS1141.11.1
7 L021-1 100 AS1141.11.1
8 L024 100 AS1141.11.1
9 L005 100 AS1141.11.1
10 L005 100 AS1141.11.1
11 L006 100 AS1141.11.1
12 L007 100 AS1141.11.1
13 L008 100 AS1141.11.1
14 L002 100 AS1141.11.1
15 L003 100 AS1141.11.1
16 L013 100 AS1141.11.1
17 L013 100 AS1141.11.1
18 L009 100 AS1141.11.1
19 L003 100 AS1141.11.1
20 L010 100 AS1141.11.1
21 L058 100 AS1141.11.1
22 L031 100 NZS 4407:2015 Test 3.8.2
23 L047 100 AS1141.11.1
24 L004 100 AS1141.11.1
25 L045 100 AS1141.11.1
26 L159 100 AS1141.11.1
27 L072 100 AS1141.11.1
28 L248 100 AS1141.11.1
29 L133 100 AS1141.11.1
30 L154 100 AS1141.11.1
31 L010 100 AS1141.11.1
32 L221 100 AS1141.11.1
33 L034 100 AS1141.11.1
34 L057 100 AS1141.11.1
35 L018 100 AS1141.11.1
36 L038 100 AS1141.11.1
37 L011 100 AS1141.11.1
38 L012-1 100 AS1141.11.1
39 L012-2 100 AS1141.11.1
40 L012-3 100 AS1141.11.1
41 L012-4 100 AS1141.11.1
42 L012-5 100 AS1141.11.1
43 L012-6 100 AS1141.11.1
44 L012-7 100 AS1141.11.1
45 L012-8 100 AS1141.11.1
46 L012-9 100 AS1141.11.1
47
L012-
10 100 AS1141.11.1
48 L027 100 AS1141.11.1
Page | 81 AAPA Proficiency 2018 v1.2
49 L027 100 AS1141.11.1
50 L010 100 AS1141.11.1
51 L004 100 AS1141.11.1
52 L009 100 AS1141.11.1
53 L044 100 AS1141.11.1
Avg 100.00
STD 0.00
Max 100.00
Min 100.00
Median 100.00
No. data 53
Q1 100.000
Q3 100.000
IQR 0.000
NormIQR 0.000
RobustCV 0.00
U of Med 0.000
Page | 82 AAPA Proficiency 2018 v1.2
Table 37: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 19.0 mm
Position LAB ID Sample Number Result z score Test Method
1 L046 100 AS1141.11.1
2 L022 100 AS1141.11.1
3 L001 100 AS1141.11.1
4 L010 100 AS1141.11.1
5 L021-3 100 AS1141.11.1
6 L021-2 100 AS1141.11.1
7 L021-1 100 AS1141.11.1
8 L024 100 AS1141.11.1
9 L005 100 AS1141.11.1
10 L005 100 AS1141.11.1
11 L006 100 AS1141.11.1
12 L007 100 AS1141.11.1
13 L008 100 AS1141.11.1
14 L002 100 AS1141.11.1
15 L003 100 AS1141.11.1
16 L013 100 AS1141.11.1
17 L013 100 AS1141.11.1
18 L009 100 AS1141.11.1
19 L003 100 AS1141.11.1
20 L010 100 AS1141.11.1
21 L058 100 AS1141.11.1
22 L031 100 NZS 4407:2015 Test 3.8.2
23 L047 100 AS1141.11.1
24 L004 100 AS1141.11.1
25 L045 100 AS1141.11.1
26 L159 100 AS1141.11.1
27 L072 100 AS1141.11.1
28 L248 100 AS1141.11.1
29 L133 100 AS1141.11.1
30 L154 100 AS1141.11.1
31 L010 100 AS1141.11.1
32 L221 100 AS1141.11.1
33 L034 100 AS1141.11.1
34 L057 100 AS1141.11.1
35 L018 100 AS1141.11.1
36 L038 100 AS1141.11.1
37 L011 100 AS1141.11.1
38 L012-1 100 AS1141.11.1
39 L012-2 100 AS1141.11.1
40 L012-3 100 AS1141.11.1
41 L012-4 100 AS1141.11.1
42 L012-5 100 AS1141.11.1
43 L012-6 100 AS1141.11.1
44 L012-7 100 AS1141.11.1
45 L012-8 100 AS1141.11.1
46 L012-9 100 AS1141.11.1
47
L012-
10 100 AS1141.11.1
48 L027 100 AS1141.11.1
Page | 83 AAPA Proficiency 2018 v1.2
49 L027 100 AS1141.11.1
50 L010 100 AS1141.11.1
51 L004 92 AS1141.11.1
52 L009 100 AS1141.11.1
53 L044 100 AS1141.11.1
Avg 99.85
STD 1.10
Max 100.00
Min 92.00
Median 100.00
No. data 53
Q1 100.000
Q3 100.000
IQR 0.000
NormIQR 0.000
RobustCV 0.00
U of Med 0.000
Page | 84 AAPA Proficiency 2018 v1.2
Table 38: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 13.2 mm
Position LAB ID Sample Number Result z score Test Method
1 L004 8 -33.72 AS1141.11.1
2 L003 59 -13.49 AS1141.11.1
3 L013 87 -2.30 AS1141.11.1
4 L133 88 -2.02 AS1141.11.1
5 L012-4 88 -2.02 AS1141.11.1
6 L007 89 -1.59 AS1141.11.1
7 L008 89 -1.59 AS1141.11.1
8 L009 89 -1.59 AS1141.11.1
9 L009 89 -1.51 AS1141.11.1
10 L058 90 -1.27 AS1141.11.1
11 L021-1 90 -1.07 AS1141.11.1
12 L012-2 90 -1.03 AS1141.11.1
13 L072 91 -0.99 AS1141.11.1
14 L012-7 91 -0.99 AS1141.11.1
15 L221 91 -0.91 AS1141.11.1
16 L034 91 -0.91 AS1141.11.1
17 L012-6 91 -0.91 AS1141.11.1
18 L027 92 -0.52 AS1141.11.1
19 L010 92 -0.40 AS1141.11.1
20 L006 92 -0.40 AS1141.11.1
21 L010 92 -0.40 AS1141.11.1
22 L010 92 -0.36 AS1141.11.1
23 L038 92 -0.28 AS1141.11.1
24 L047 93 -0.08 AS1141.11.1
25 L018 93 -0.04 AS1141.11.1
26 L021-3 93 0.00 AS1141.11.1
27 L002 93 0.00 AS1141.11.1
28 L057 93 0.00 AS1141.11.1
29 L021-2 93 0.04 AS1141.11.1
30 L248 93 0.04 AS1141.11.1
31 L012-8 93 0.04 AS1141.11.1
32 L012-10 93 0.04 AS1141.11.1
33 L013 93 0.08 AS1141.11.1
34 L010 93 0.08 AS1141.11.1
35 L012-1 93 0.08 AS1141.11.1
36 L046 93 0.12 AS1141.11.1
37 L001 93 0.12 AS1141.11.1
38 L045 94 0.24 AS1141.11.1
39 L044 94 0.32 AS1141.11.1
40 L022 94 0.36 AS1141.11.1
41 L005 94 0.36 AS1141.11.1
42 L012-3 94 0.40 AS1141.11.1
43 L024 94 0.44 AS1141.11.1
44 L003 94 0.44 AS1141.11.1
45 L154 94 0.56 AS1141.11.1
46 L012-5 94 0.56 AS1141.11.1
47 L011 95 0.71 AS1141.11.1
48 L005 95 0.83 AS1141.11.1
Page | 85 AAPA Proficiency 2018 v1.2
49 L159 96 1.31 AS1141.11.1
50 L012-9 96 1.31 AS1141.11.1
51 L031 100 2.78 NZS 4407:2015 Test 3.8.2
52 L027 100 2.78 AS1141.11.1
53 L004 117 9.44 AS1141.11.1
Avg 90.77
STD 13.18
Max 116.80
Min 8.00
Median 93.00
No. data 53
Q1 90.500
Q3 93.900
IQR 3.400
NormIQR 2.520
RobustCV 2.71
U of Med 0.434
Page | 86 AAPA Proficiency 2018 v1.2
Table 39: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 9.5 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 -527 -277.27 AS1141.11.1
2 L007 -5 -6.43 AS1141.11.1
3 L008 -5 -6.43 AS1141.11.1
4 L021-1 -5 -6.33 AS1141.11.1
5 L006 -1 -4.36 AS1141.11.1
6 L010 0 -3.84 AS1141.11.1
7 L010 0 -3.84 AS1141.11.1
8 L004 1 -3.42 AS1141.11.1
9 L047 5 -1.27 AS1141.11.1
10 L012-10 6 -0.78 AS1141.11.1
11 L248 6 -0.78 AS1141.11.1
12 L046 6 -0.73 AS1141.11.1
13 L058 6 -0.73 AS1141.11.1
14 L034 6 -0.57 AS1141.11.1
15 L133 7 -0.42 AS1141.11.1
16 L221 7 -0.42 AS1141.11.1
17 L012-4 7 -0.42 AS1141.11.1
18 L012-6 7 -0.42 AS1141.11.1
19 L010 7 -0.26 AS1141.11.1
20 L027 7 -0.26 AS1141.11.1
21 L021-2 7 -0.21 AS1141.11.1
22 L012-1 7 -0.21 AS1141.11.1
23 L044 7 -0.21 AS1141.11.1
24 L038 7 -0.16 AS1141.11.1
25 L072 7 -0.05 AS1141.11.1
26 L057 7 -0.05 AS1141.11.1
27 L012-2 7 0.00 AS1141.11.1
28 L012-7 7 0.00 AS1141.11.1
29 L005 8 0.16 AS1141.11.1
30 L021-3 8 0.21 AS1141.11.1
31 L002 8 0.31 AS1141.11.1
32 L009 8 0.31 AS1141.11.1
33 L012-8 8 0.36 AS1141.11.1
34 L009 8 0.36 AS1141.11.1
35 L011 8 0.47 AS1141.11.1
36 L024 8 0.52 AS1141.11.1
37 L013 9 0.57 AS1141.11.1
38 L045 9 0.67 AS1141.11.1
39 L022 9 0.78 AS1141.11.1
40 L005 9 0.78 AS1141.11.1
41 L012-3 9 0.83 AS1141.11.1
42 L154 9 0.93 AS1141.11.1
43 L012-5 9 0.93 AS1141.11.1
44 L003 10 1.14 AS1141.11.1
45 L001 10 1.19 AS1141.11.1
46 L013 11 1.61 AS1141.11.1
47 L018 11 1.76 AS1141.11.1
48 L012-9 12 2.28 AS1141.11.1
Page | 87 AAPA Proficiency 2018 v1.2
49 L159 12 2.28 AS1141.11.1
50 L027 88 41.77 AS1141.11.1
51 L010 92 44.10 AS1141.11.1
52 L031 100 48.04 NZS 4407:2015 Test 3.8.2
53 L004 1233 636.04 AS1141.11.1
Avg 24.44
STD 185.85
Max 1233.30
Min -527.00
Median 7.40
No. data 53
Q1 6.300
Q3 8.900
IQR 2.600
NormIQR 1.927
RobustCV 26.05
U of Med 0.332
Page | 88 AAPA Proficiency 2018 v1.2
Table 40: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 6.7 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 -585
-
1976.26 AS1141.11.1
2 L021-1 -104 -354.11 AS1141.11.1
3 L007 -104 -353.77 AS1141.11.1
4 L008 -104 -353.77 AS1141.11.1
5 L010 -99 -338.26 AS1141.11.1
6 L010 -99 -336.91 AS1141.11.1
7 L006 -99 -336.91 AS1141.11.1
8 L013 1 -1.35 AS1141.11.1
9 L012-2 1 -1.35 AS1141.11.1
10 L011 1 -1.01 AS1141.11.1
11 L004 1 -1.01 AS1141.11.1
12 L005 1 -0.67 AS1141.11.1
13 L013 1 -0.67 AS1141.11.1
14 L012-3 1 -0.67 AS1141.11.1
15 L046 1 -0.67 AS1141.11.1
16 L044 1 -0.67 AS1141.11.1
17 L009 1 -0.67 AS1141.11.1
18 L012-10 1 -0.34 AS1141.11.1
19 L248 1 -0.34 AS1141.11.1
20 L133 1 -0.34 AS1141.11.1
21 L018 1 -0.34 AS1141.11.1
22 L022 1 -0.34 AS1141.11.1
23 L012-4 1 -0.34 AS1141.11.1
24 L012-9 1 0.00 AS1141.11.1
25 L047 1 0.00 AS1141.11.1
26 L045 1 0.00 AS1141.11.1
27 L159 1 0.00 AS1141.11.1
28 L058 1 0.00 AS1141.11.1
29 L024 1 0.34 AS1141.11.1
30 L012-8 1 0.34 AS1141.11.1
31 L021-3 1 0.34 AS1141.11.1
32 L002 1 0.34 AS1141.11.1
33 L010 1 0.34 AS1141.11.1
34 L221 1 0.34 AS1141.11.1
35 L057 1 0.34 AS1141.11.1
36 L009 1 0.34 AS1141.11.1
37 L027 1 0.34 AS1141.11.1
38 L012-6 1 0.34 AS1141.11.1
39 L021-2 1 0.67 AS1141.11.1
40 L012-1 1 0.67 AS1141.11.1
41 L034 1 0.67 AS1141.11.1
42 L001 1 0.67 AS1141.11.1
43 L003 1 1.01 AS1141.11.1
44 L038 1 1.01 AS1141.11.1
45 L072 1 1.01 AS1141.11.1
46 L012-5 1 1.01 AS1141.11.1
47 L154 1 1.35 AS1141.11.1
48 L012-7 1 1.35 AS1141.11.1
Page | 89 AAPA Proficiency 2018 v1.2
49 L005 1 1.69 AS1141.11.1
50 L027 36 117.02 AS1141.11.1
51 L010 99 332.19 AS1141.11.1
52 L031 100 334.21 NZS 4407:2015 Test 3.8.2
53 L004 106 353.77 AS1141.11.1
Avg -15.38
STD 90.31
Max 105.80
Min -585.10
Median 0.90
No. data 53
Q1 0.700
Q3 1.100
IQR 0.400
NormIQR 0.297
RobustCV 32.95
U of Med 0.051
Page | 90 AAPA Proficiency 2018 v1.2
Table 41: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 4.75 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 -589
-
2652.10 AS1141.11.1
2 L021-1 -204 -918.21 AS1141.11.1
3 L010 -199 -898.42 AS1141.11.1
4 L010 -198 -893.03 AS1141.11.1
5 L006 -198 -893.03 AS1141.11.1
6 L007 -104 -470.34 AS1141.11.1
7 L008 -104 -470.34 AS1141.11.1
8 L011 0 -1.80 AS1141.11.1
9 L012-4 0 -1.35 AS1141.11.1
10 L013 0 -0.90 AS1141.11.1
11 L012-3 0 -0.90 AS1141.11.1
12 L013 0 -0.90 AS1141.11.1
13 L133 0 -0.90 AS1141.11.1
14 L010 0 -0.90 AS1141.11.1
15 L012-2 0 -0.90 AS1141.11.1
16 L022 0 -0.90 AS1141.11.1
17 L009 0 -0.90 AS1141.11.1
18 L012-10 0 -0.45 AS1141.11.1
19 L012-1 1 -0.45 AS1141.11.1
20 L045 1 -0.45 AS1141.11.1
21 L159 1 -0.45 AS1141.11.1
22 L248 1 -0.45 AS1141.11.1
23 L034 1 -0.45 AS1141.11.1
24 L044 1 -0.45 AS1141.11.1
25 L001 1 -0.45 AS1141.11.1
26 L005 1 0.00 AS1141.11.1
27 L003 1 0.00 AS1141.11.1
28 L021-3 1 0.00 AS1141.11.1
29 L012-8 1 0.00 AS1141.11.1
30 L012-9 1 0.00 AS1141.11.1
31 L072 1 0.00 AS1141.11.1
32 L154 1 0.00 AS1141.11.1
33 L018 1 0.00 AS1141.11.1
34 L004 1 0.00 AS1141.11.1
35 L046 1 0.00 AS1141.11.1
36 L012-5 1 0.00 AS1141.11.1
37 L047 1 0.31 AS1141.11.1
38 L024 1 0.45 AS1141.11.1
39 L038 1 0.45 AS1141.11.1
40 L221 1 0.45 AS1141.11.1
41 L057 1 0.45 AS1141.11.1
42 L058 1 0.45 AS1141.11.1
43 L027 1 0.45 AS1141.11.1
44 L012-7 1 0.45 AS1141.11.1
45 L012-6 1 0.45 AS1141.11.1
46 L021-2 1 1.35 AS1141.11.1
47 L005 1 1.35 AS1141.11.1
48 L002 1 1.80 AS1141.11.1
Page | 91 AAPA Proficiency 2018 v1.2
49 L009 1 1.80 AS1141.11.1
50 L004 3 10.79 AS1141.11.1
51 L027 7 28.78 AS1141.11.1
52 L010 100 446.06 AS1141.11.1
53 L031 100 446.96 NZS 4407:2015 Test 3.8.2
Avg -25.69
STD 99.36
Max 100.00
Min -589.20
Median 0.60
No. data 53
Q1 0.400
Q3 0.700
IQR 0.300
NormIQR 0.222
RobustCV 37.07
U of Med 0.038
Page | 92 AAPA Proficiency 2018 v1.2
Table 42: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 2.36 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 -590 -2653.90 AS1141.11.1
2 L021-1 -303 -1365.17 AS1141.11.1
3 L010 -299 -1347.18 AS1141.11.1
4 L010 -298 -1342.24 AS1141.11.1
5 L006 -297 -1337.74 AS1141.11.1
6 L007 -104 -469.90 AS1141.11.1
7 L008 -104 -469.90 AS1141.11.1
8 L011 0 -1.80 AS1141.11.1
9 L012-4 0 -1.80 AS1141.11.1
10 L004 0 -1.35 AS1141.11.1
11 L133 0 -1.35 AS1141.11.1
12 L010 0 -0.90 AS1141.11.1
13 L057 0 -0.90 AS1141.11.1
14 L013 0 -0.90 AS1141.11.1
15 L001 0 -0.90 AS1141.11.1
16 L022 0 -0.90 AS1141.11.1
17 L009 0 -0.90 AS1141.11.1
18 L012-8 0 -0.45 AS1141.11.1
19 L013 0 -0.45 AS1141.11.1
20 L012-3 0 -0.45 AS1141.11.1
21 L012-1 0 -0.45 AS1141.11.1
22 L045 0 -0.45 AS1141.11.1
23 L012-2 0 -0.45 AS1141.11.1
24 L024 0 0.00 AS1141.11.1
25 L012-10 0 0.00 AS1141.11.1
26 L003 0 0.00 AS1141.11.1
27 L012-9 0 0.00 AS1141.11.1
28 L021-3 1 0.00 AS1141.11.1
29 L159 1 0.00 AS1141.11.1
30 L072 1 0.00 AS1141.11.1
31 L248 1 0.00 AS1141.11.1
32 L034 1 0.00 AS1141.11.1
33 L018 1 0.00 AS1141.11.1
34 L004 1 0.00 AS1141.11.1
35 L046 1 0.00 AS1141.11.1
36 L044 1 0.00 AS1141.11.1
37 L005 1 0.45 AS1141.11.1
38 L038 1 0.45 AS1141.11.1
39 L154 1 0.45 AS1141.11.1
40 L221 1 0.45 AS1141.11.1
41 L058 1 0.45 AS1141.11.1
42 L012-5 1 0.45 AS1141.11.1
43 L012-7 1 0.45 AS1141.11.1
44 L012-6 1 0.45 AS1141.11.1
45 L047 1 0.54 AS1141.11.1
46 L027 1 0.90 AS1141.11.1
47 L021-2 1 1.35 AS1141.11.1
48 L005 1 1.35 AS1141.11.1
Page | 93 AAPA Proficiency 2018 v1.2
49 L002 1 2.25 AS1141.11.1
50 L009 1 2.25 AS1141.11.1
51 L027 2 6.30 AS1141.11.1
52 L010 100 446.96 AS1141.11.1
53 L031 100 447.41 NZS 4407:2015 Test 3.8.2
Avg -33.44
STD 115.06
Max 100.00
Min -589.70
Median 0.50
No. data 53
Q1 0.300
Q3 0.600
IQR 0.300
NormIQR 0.222
RobustCV 44.48
U of Med 0.038
Page | 94 AAPA Proficiency 2018 v1.2
Table 43: z-scores: Stream 3 – Coarse Aggregate: Grading / Percentage passing 0.075 mm
Position LAB ID Sample Number Result z score Test Method
1 L003 -590 -2656.14 AS1141.11.1
2 L021-1 -403 -1812.58 AS1141.11.1
3 L010 -399 -1795.94 AS1141.11.1
4 L010 -398 -1791.45 AS1141.11.1
5 L006 -396 -1782.45 AS1141.11.1
6 L007 -104 -470.79 AS1141.11.1
7 L008 -104 -469.45 AS1141.11.1
8 L022 0 -1.80 AS1141.11.1
9 L011 0 -1.35 AS1141.11.1
10 L248 0 -1.35 AS1141.11.1
11 L046 0 -1.35 AS1141.11.1
12 L012-4 0 -1.35 AS1141.11.1
13 L045 0 -0.90 AS1141.11.1
14 L133 0 -0.90 AS1141.11.1
15 L010 0 -0.90 AS1141.11.1
16 L013 0 -0.90 AS1141.11.1
17 L001 0 -0.90 AS1141.11.1
18 L009 0 -0.90 AS1141.11.1
19 L024 0 -0.45 AS1141.11.1
20 L012-8 0 -0.45 AS1141.11.1
21 L013 0 -0.45 AS1141.11.1
22 L012-3 0 -0.45 AS1141.11.1
23 L159 0 -0.45 AS1141.11.1
24 L057 0 -0.45 AS1141.11.1
25 L005 0 0.00 AS1141.11.1
26 L003 0 0.00 AS1141.11.1
27 L012-1 0 0.00 AS1141.11.1
28 L072 0 0.00 AS1141.11.1
29 L221 0 0.00 AS1141.11.1
30 L034 0 0.00 AS1141.11.1
31 L018 0 0.00 AS1141.11.1
32 L004 0 0.00 AS1141.11.1
33 L044 0 0.00 AS1141.11.1
34 L012-2 0 0.00 AS1141.11.1
35 L021-3 0 0.00 AS1141.11.1
36 L012-6 0 0.00 AS1141.11.1
37 L012-10 0 0.45 AS1141.11.1
38 L012-9 0 0.45 AS1141.11.1
39 L047 1 0.45 AS1141.11.1
40 L154 1 0.45 AS1141.11.1
41 L012-5 1 0.45 AS1141.11.1
42 L038 1 0.90 AS1141.11.1
43 L021-2 1 0.90 AS1141.11.1
44 L058 1 0.90 AS1141.11.1
45 L012-7 1 0.90 AS1141.11.1
46 L004 1 1.35 AS1141.11.1
47 L027 1 1.35 AS1141.11.1
48 L005 1 1.35 AS1141.11.1
Page | 95 AAPA Proficiency 2018 v1.2
49 L009 1 1.80 AS1141.11.1
50 L027 1 2.25 AS1141.11.1
51 L002 1 2.70 AS1141.11.1
52 L010 100 447.41 AS1141.11.1
53 L031 100 447.86 NZS 4407:2015 Test 3.8.2
Avg -41.07
STD 134.26
Max 100.00
Min -590.30
Median 0.40
No. data 53
Q1 0.200
Q3 0.500
IQR 0.300
NormIQR 0.222
RobustCV 55.60
U of Med 0.038
Page | 96 AAPA Proficiency 2018 v1.2
Table 44: z-scores: Stream 3 – Coarse Aggregate: Average least dimension by calculation nomograph
Position LAB ID Sample Number Result z score Test Method
1 L221 9.4 -1.25 AS1141.20.3
2 L012-6 9.4 -1.25 AS1141.20.3
3 L001 9.5 -0.83 AS1141.20.3
4 L159 9.5 -0.83 AS1141.20.3
5 L010 9.5 -0.83 AS1141.20.3
6 L012-1 9.5 -0.83 AS1141.20.3
7 L012-8 9.5 -0.83 AS1141.20.3
8 L012-9 9.5 -0.83 AS1141.20.3
9 L010 9.6 -0.42 AS1141.20.3
10 L021-1 9.6 -0.42 AS1141.20.3
11 L045 9.6 -0.42 AS1141.20.3
12 L012-3 9.6 -0.42 AS1141.20.3
13 L021-3 9.7 0.00 AS1141.20.3
14 L024 9.7 0.00 AS1141.20.3
15 L034 9.7 0.00 AS1141.20.3
16 L012-2 9.7 0.00 AS1141.20.3
17 L012-7 9.7 0.00 AS1141.20.3
18 L021-2 9.8 0.42 AS1141.20.3
19 L133 9.8 0.42 AS1141.20.3
20 L012-4 9.8 0.42 AS1141.20.3
21 L012-5 9.8 0.42 AS1141.20.3
22 L005 9.9 0.83 AS1141.20.3
23 L013 9.9 0.83 AS1141.20.3
24 L010 9.9 0.83 AS1141.20.3
25 L072 9.9 0.83 AS1141.20.3
26 L046 10 1.25 AS1141.20.3
27 L013 10.2 2.08 AS1141.20.3
28 L154 11 5.40 AS1141.20.3
29 L022
30 L005
31 L006
32 L007
33 L008
34 L002
35 L003
36 L009
37 L003
38 L058
39 L031
40 L047
41 L004
42 L248
43 L057
44 L018
45 L038
46 L011
47
L012-
10
48 L027
Page | 97 AAPA Proficiency 2018 v1.2
49 L027
50 L010
51 L004
52 L009
53 L044
Avg 9.74
STD 0.31
Max 11.00
Min 9.40
Median 9.70
No. data 28
Q1 9.500
Q3 9.825
IQR 0.325
NormIQR 0.241
RobustCV 2.48
U of Med 0.057
Page | 98 AAPA Proficiency 2018 v1.2
Table 45: z-scores: Stream 3 – Coarse Aggregate: Flakiness index
Position LAB ID Sample Number Result z score Test Method
1 L012-5 2 -1.46 AS1141.15
2 L154 2.3 -1.24 AS1141.15
3 L005 2.5 -1.09 AS1141.15
4 L046 3 -0.73 AS1141.15
5 L022 3 -0.73 AS1141.15
6 L248 3 -0.73 AS1141.15
7 L012-3 3 -0.73 AS1141.15
8 L012-6 3 -0.73 AS1141.15
9 L012-9 3 -0.73 AS1141.15
10 L012-10 3 -0.73 AS1141.15
11 L159 3.3 -0.51 AS1141.15
12 L221 3.5 -0.36 AS1141.15
13 L021-2 4 0.00 AS1141.15
14 L008 4 0.00 AS1141.15
15 L013 4 0.00 AS1141.15
16 L009 4 0.00 AS1141.15
17 L058 4 0.00 AS1141.15
18 L012-7 4 0.00 AS1141.15
19 L012-8 4 0.00 AS1141.15
20 L009 4 0.00 AS1141.15
21 L010 4.1 0.07 AS1141.15
22 L012-1 4.1 0.07 AS1141.15
23 L072 4.5 0.36 AS1141.15
24 L010 5 0.73 AS1141.15
25 L021-3 5 0.73 AS1141.15
26 L024 5 0.73 AS1141.15
27 L002 5 0.73 AS1141.15
28 L013 5 0.73 AS1141.15
29 L010 5 0.73 AS1141.15
30 L012-4 5 0.73 AS1141.15
31 L010 5 0.73 AS1141.15
32 L012-2 5.2 0.88 AS1141.15
33 L133 5.3 0.95 AS1141.15
34 L004 6 1.46 AS1141.15
35 L045 6 1.46 AS1141.15
36 L034 6 1.46 AS1141.15
37 L004 6 1.46 AS1141.15
38 L001 7 2.19 AS1141.15
39 L021-1 7 2.19 AS1141.15
40 L005
41 L006
42 L007
43 L003
44 L003
45 L031
46 L047
47 L057
48 L018
Page | 99 AAPA Proficiency 2018 v1.2
49 L038
50 L011
51 L027
52 L027
53 L044
Avg 4.30
STD 1.24
Max 7.00
Min 2.00
Median 4.00
No. data 39
Q1 3.150
Q3 5.000
IQR 1.850
NormIQR 1.371
RobustCV 34.29
U of Med 0.275
Page | 100 AAPA Proficiency 2018 v1.2
Table 46: z-scores: Stream 4 – Resilient Modulus: Maximum density results used for test
Position LAB ID
Sample
Number Result z score Test Method
1 L001 15 2.564, 2.56 -6.64 AS/NZS 2891.7.1
2 L038 83 2.568, 2.561 -5.60 AS/NZS 2891.7.1
3 L022 67 2.573, 2.573 -2.08 AS/NZS 2891.7.1
4 L031 7 2.564, 2.585 -1.45
ASTM D2041/D2041M
2011
5 L028 98 2.573, 2.578 -1.04 AS/NZS 2891.7.1
6 L030 51 2.577, 2.575 -0.83 ASTM D2041
7 L018 35 2.578, 2.576 -0.42 AS/NZS 2891.7.1
8 L039 39 2.577, 2.578 -0.21 AS/NZS 2891.7.1
9 L035 87 2.577, 2.58 0.21 AS2891.7.3
10 L025 28 2.577, 2.58 0.21 AS/NZS 2891.7.1
11 L033 96 2.579, 2.579 0.42 As supplied
12 L005 26 2.579, 2.579 0.42 N/A - MTD provided
13 L012 - NBA 53 2.579, 2.579 0.42 Provided value - 2.579
14 L011 40 2.583, 2.576 0.62 AS/NZS 2891.7.1
15 L002 22 2.584, 2.578 1.25 AS/NZS 2891.7.1
16 L058 22 2.584, 2.578 1.25 AS/NZS 2891.7.1
17 L058 22 2.584, 2.578 1.25 AS/NZS 2891.7.1
18 L049 88 2.579, 2.585 1.66 AS/NZS 2891.7.1
Avg 2.58
STD 0.01
Max 2.59
Min 2.56
Median 2.58
No. data 36
Q1 2.576
Q3 2.579
IQR 0.003
NormIQR 0.002
RobustCV 0.09
U of Med 0.001
Page | 101 AAPA Proficiency 2018 v1.2
Table 47: z-scores: Stream 4 – Resilient Modulus: Compacted density – average of 3 samples
Position LAB ID Sample Number Result z score Test Method
1 L022 67
2.408, 2.409,
2.428 -2.24
AS/NZS 2891.9.2 (pre-
saturation)
2 L005 26
2.435, 2.437,
2.434 -1.72
AS/NZS 2891.9.2 (pre-
saturation)
3 L035 87
2.442, 2.444,
2.439 -1.56
AS/NZS 2891.9.2 (pre-
saturation)
4 L025 28
2.452, 2.445,
2.45 -1.37
AS/NZS 2891.9.2 (pre-
saturation)
5 L001 15
2.472, 2.467,
2.459 -0.93
AS/NZS 2891.9.2 (pre-
saturation)
6 L011 40
2.472, 2.475,
2.476 -0.72
AS/NZS 2891.9.2 (pre-
saturation)
7 L012 - NBA 53
2.493, 2.479,
2.486 -0.42 Q306C - Silicon Sealed
8 L033 96
2.492, 2.502,
2.497 -0.14
AS/NZS 2891.9.2 (pre-
saturation)
9 L038 83
2.504, 2.496,
2.498 -0.08
AS/NZS 2891.9.2 (pre-
saturation)
10 L039 39
2.505, 2.499,
2.504 0.00
AS/NZS 2891.9.2 (pre-
saturation)
11 L049 88
2.517, 2.52,
2.503 0.28
AS/NZS 2891.9.2 (pre-
saturation)
12 L002 22
2.517, 2.521,
2.524 0.46
AS/NZS 2891.9.2 (pre-
saturation)
13 L058 22
2.517, 2.521,
2.524 0.46
AS/NZS 2891.9.2 (pre-
saturation)
14 L058 22
2.517, 2.521,
2.524 0.46
AS/NZS 2891.9.2 (pre-
saturation)
15 L031 7
2.52, 2.521,
2.523 0.48
AS/NZS 2891.9.2 (pre-
saturation)
16 L030 51
2.541, 2.54,
2.543 0.99 ASTM D2726
17 L018 35
2.547, 2.544,
2.545 1.10
AS/NZS 2891.9.2 (pre-
saturation)
18 L028 98
2.55, 2.548,
2.551 1.21
AS/NZS 2891.9.2 (pre-
saturation)
Avg 2.49
STD 0.04
Max 2.55
Min 2.41
Median 2.50
No. data 54
Q1 2.468
Q3 2.521
IQR 0.053
NormIQR 0.039
RobustCV 1.56
U of Med 0.007
Page | 102 AAPA Proficiency 2018 v1.2
Table 48: z-scores: Stream 4 – Resilient Modulus: Air voids of compacted specimens – average of 3 samples
Position LAB ID Sample Number Result z score Test Method
1 L028 98 1, 1.1, 1 -1.24
AS/NZS 2891.9.2 (pre-
saturation)
2 L018 35 1.2, 1.3, 1.2 -1.10
AS/NZS 2891.9.2 (pre-
saturation)
3 L030 51 1.4, 1.4, 1.3 -1.01 ASTM D2726
4 L031 7 2.1, 2.1, 2 -0.54
AS/NZS 2891.9.2 (pre-
saturation)
5 L002 22 2.5, 2.3, 2.2 -0.35
AS/NZS 2891.9.2 (pre-
saturation)
6 L058 22 2.5, 2.3, 2.2 -0.35
AS/NZS 2891.9.2 (pre-
saturation)
7 L058 22 2.5, 2.3, 2.2 -0.35
AS/NZS 2891.9.2 (pre-
saturation)
8 L038 83 2.4, 2.7, 2.6 -0.19
AS/NZS 2891.9.2 (pre-
saturation)
9 L049 88 2.5, 2.4, 3.1 -0.13
AS/NZS 2891.9.2 (pre-
saturation)
10 L039 39 2.8, 3.1, 2.9 0.06
AS/NZS 2891.9.2 (pre-
saturation)
11 L033 96 3.4, 3, 3.2 0.24
AS/NZS 2891.9.2 (pre-
saturation)
12
L012 -
NBA 53 3.3, 3.9, 3.6 0.51 Q306C - Silicon Sealed
13 L011 40 4.2, 4.1, 4 0.85
AS/NZS 2891.9.2 (pre-
saturation)
14 L025 28 4.9, 5.2, 5 1.49
AS/NZS 2891.9.2 (pre-
saturation)
15 L035 87 5.3, 5.2, 5.4 1.67
AS/NZS 2891.9.2 (pre-
saturation)
16 L005 26 5.6, 5.5, 5.6 1.86
AS/NZS 2891.9.2 (pre-
saturation)
17 L022 67 6.4, 6.4, 5.6 2.24
AS/NZS 2891.9.2 (pre-
saturation)
18 L001 15 3.5, 3.7, 40 8.80
AS/NZS 2891.9.2 (pre-
saturation)
Avg 3.86
STD 5.23
Max 40.00
Min 1.00
Median 2.85
No. data 54
Q1 2.200
Q3 4.175
IQR 1.975
NormIQR 1.464
RobustCV 51.37
U of Med 0.250
Page | 103 AAPA Proficiency 2018 v1.2
Table 49: z-scores: Stream 4 – Resilient Modulus: Compacted height – average of 3 samples
Position LAB ID Sample Number Result z score Test Method
1 L022 67
61.4, 61.7,
60.9 -2.91
AS/NZS 2891.9.2 (pre-
saturation)
2 L049 88
63.3, 63.5,
63.5 -1.24
AS/NZS 2891.9.2 (pre-
saturation)
3 L028 98
63.6, 63.7,
63.8 -1.03
AS/NZS 2891.9.2 (pre-
saturation)
4 L018 35
63.7, 63.7,
63.7 -1.03
AS/NZS 2891.9.2 (pre-
saturation)
5 L011 40
64.3, 63.9,
63.8 -0.79
AS/NZS 2891.9.2 (pre-
saturation)
6 L030 51
64.4, 64.6,
64.7 -0.34 ASTM D2726
7 L005 26
64.5, 64.7,
64.6 -0.32
AS/NZS 2891.9.2 (pre-
saturation)
8 L002 22
65, 65.4,
64.4 -0.05
AS/NZS 2891.9.2 (pre-
saturation)
9 L058 22
65, 65.4,
64.4 -0.05
AS/NZS 2891.9.2 (pre-
saturation)
10 L058 22
65, 65.4,
64.4 -0.05
AS/NZS 2891.9.2 (pre-
saturation)
11 L031 7 65, 65, 65.3 0.08
AS/NZS 2891.9.2 (pre-
saturation)
12 L033 96
65.6, 65.2,
65.4 0.32
AS/NZS 2891.9.2 (pre-
saturation)
13 L038 83
65.5, 65.7,
65.9 0.56
AS/NZS 2891.9.2 (pre-
saturation)
14
L012 -
NBA 53
65.5, 66,
65.9 0.63 Q306C - Silicon Sealed
15 L001 15
66, 65.8,
65.8 0.69
AS/NZS 2891.9.2 (pre-
saturation)
16 L035 87
65.3, 65.9,
66.7 0.77
AS/NZS 2891.9.2 (pre-
saturation)
17 L025 28
66.4, 65.8,
65.7 0.77
AS/NZS 2891.9.2 (pre-
saturation)
18 L039 39
67.8, 67.6,
66 1.69
AS/NZS 2891.9.2 (pre-
saturation)
Avg 64.84
STD 1.31
Max 67.80
Min 60.90
Median 65.00
No. data 54
Q1 64.000
Q3 65.700
IQR 1.700
NormIQR 1.260
RobustCV 1.94
U of Med 0.215
Page | 104 AAPA Proficiency 2018 v1.2
Table 50: z-scores: Stream 4 – Resilient Modulus: Diameter of specimens – average of 3 samples
Position LAB ID Sample Number Result z score Test Method
1 L005 26
99.2, 98.8,
99 -6.74
AS/NZS 2891.9.2 (pre-
saturation)
2 L011 40
99.5, 99.3,
99.7 -3.37
AS/NZS 2891.9.2 (pre-
saturation)
3 L031 7
99.8, 99.8,
99.7 -1.57
AS/NZS 2891.9.2 (pre-
saturation)
4 L038 83
99.9, 99.9,
99.9 -0.67
AS/NZS 2891.9.2 (pre-
saturation)
5 L028 98
99.9, 99.9,
99.9 -0.67
AS/NZS 2891.9.2 (pre-
saturation)
6 L033 96
99.8, 100,
99.9 -0.67
AS/NZS 2891.9.2 (pre-
saturation)
7 L030 51
99.9, 100,
100 -0.22 ASTM D2726
8 L025 28
100, 99.9,
100 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
9 L002 22
99.9, 99.9,
100.1 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
10 L058 22
99.9, 99.9,
100.1 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
11 L058 22
99.9, 99.9,
100.1 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
12 L039 39
100, 100,
100 0.00
AS/NZS 2891.9.2 (pre-
saturation)
13 L018 35
100.1,
100.1, 100 0.45
AS/NZS 2891.9.2 (pre-
saturation)
14 L035 87
100.4, 99.8,
100.1 0.67
AS/NZS 2891.9.2 (pre-
saturation)
15
L012 -
NBA 53
100.1,
100.1, 100.1 0.67 Q306C - Silicon Sealed
16 L049 88
100.1,
100.1, 100.2 0.90
AS/NZS 2891.9.2 (pre-
saturation)
17 L001 15
100.2,
100.2, 100.2 1.35
AS/NZS 2891.9.2 (pre-
saturation)
18 L022 67
101.1,
101.4, 101.3 8.54
AS/NZS 2891.9.2 (pre-
saturation)
Avg 99.98
STD 0.43
Max 101.40
Min 98.80
Median 100.00
No. data 54
Q1 99.900
Q3 100.100
IQR 0.200
NormIQR 0.148
RobustCV 0.15
U of Med 0.025
Page | 105 AAPA Proficiency 2018 v1.2
Table 51: z-scores: Stream 4 – Resilient Modulus: Resilient Modulus (MPa) - average
Position LAB ID
Sample
Number Result z score Test Method
1 L022 67 3628 -2.16 AS/NZS 2891.13.1:2013
2 L038 83 3827 -1.92 AS/NZS 2891.13.1:2013
3 L005 26 3946 -1.77 AS/NZS 2891.13.1:2013
4 L033 96 4451 -1.16 AS/NZS 2891.13.1:2013
5 L030 51 4466 -1.14 AS/NZS 2891.13.1:2013
6 L039 39 4978 -0.52 AS/NZS 2891.13.1:2013
7 L049 88 5074 -0.40 AS/NZS 2891.13.1:2013
8 L002 22 5406 0.00 AS/NZS 2891.13.1:2013
9 L058 22 5406 0.00 AS/NZS 2891.13.1:2013
10 L058 22 5406 0.00 AS/NZS 2891.13.1:2013
11 L011 40 5474 0.08 AS/NZS 2891.13.1:2013
12 L001 15 5670 0.32 AS/NZS 2891.13.1:2013
13 L018 35 5697 0.35 AS/NZS 2891.13.1:2013
14 L012 - NBA 53 5707 0.37 AS/NZS 2891.13.1:2013
15 L025 28 5780 0.45 AS/NZS 2891.13.1:2013
16 L035 87 5870 0.56 AS/NZS 2891.13.1:2013
17 L031 7 6127 0.88 AS/NZS 2891.13.1:2013
18 L028 98 6234 1.01 AS/NZS 2891.13.1:2013
Avg 5174.83
STD 794.22
Max 6234.00
Min 3628.00
Median 5406.00
No. data 18
Q1 4594.000
Q3 5704.500
IQR 1110.500
NormIQR 823.214
RobustCV 15.23
U of Med 243.185
Page | 106 AAPA Proficiency 2018 v1.2
Table 52: z-scores: Stream 4 – Resilient Modulus: Resilient Modulus (MPa) – coefficient of variation
Position LAB ID
Sample
Number Result z score Test Method
1 L011 40 1.11 -0.41 AS/NZS 2891.13.1:2013
2 L028 98 1.11 -0.41 AS/NZS 2891.13.1:2013
3 L005 26 1.12 -0.39 AS/NZS 2891.13.1:2013
4 L001 15 1.13 -0.37 AS/NZS 2891.13.1:2013
5 L002 22 1.13 -0.37 AS/NZS 2891.13.1:2013
6 L058 22 1.13 -0.37 AS/NZS 2891.13.1:2013
7 L058 22 1.13 -0.37 AS/NZS 2891.13.1:2013
8 L031 7 1.15 -0.33 AS/NZS 2891.13.1:2013
9 L049 88 1.26 -0.12 AS/NZS 2891.13.1:2013
10 L025 28 1.39 0.12 AS/NZS 2891.13.1:2013
11 L012 - NBA 53 1.45 0.24 AS/NZS 2891.13.1:2013
12 L018 35 1.51 0.35 AS/NZS 2891.13.1:2013
13 L038 83 1.67 0.66 AS/NZS 2891.13.1:2013
14 L030 51 1.89 1.08 AS/NZS 2891.13.1:2013
15 L033 96 1.96 1.22 AS/NZS 2891.13.1:2013
16 L022 67 2.06 1.41 AS/NZS 2891.13.1:2013
17 L039 39 2.86 2.94 AS/NZS 2891.13.1:2013
18 L035 87 3.28 3.74 AS/NZS 2891.13.1:2013
Avg 1.57
STD 0.63
Max 3.28
Min 1.11
Median 1.33
No. data 18
Q1 1.130
Q3 1.835
IQR 0.705
NormIQR 0.523
RobustCV 39.44
U of Med 0.154
Page | 107 AAPA Proficiency 2018 v1.2
Table 53: z-scores: Stream 5 – Wheel Tracking: Compacted density of slabs
Position LAB ID Sample Number Result z score Test Method
1 L039 55,64 2.439, 0 -61.70
AS/NZS 2891.9.2 (pre-
saturation)
2 L001 24,18 2.431, 2.424 -1.35
AS/NZS 2891.9.2 (pre-
saturation)
3 L018 99,37 2.429, 2.449 -0.77
AS/NZS 2891.9.2 (pre-
saturation)
4 L050 21,90 2.449, 2.447 -0.32
AS/NZS 2891.9.2 (pre-
saturation)
5 L049 58,60 2.446, 2.453 -0.25
AS/NZS 2891.9.2 (pre-
saturation)
6 L033 27,47 2.443, 2.468 0.05
AS/NZS 2891.9.2 (pre-
saturation)
7 L057 4,10 2.456, 2.457 0.10
AS/NZS 2891.9.2 (pre-
saturation)
8 L028 20,32 2.482, 2.435 0.20
AS/NZS 2891.9.2 (pre-
saturation)
9 L022 1,2 2.467, 2.461 0.47
AS/NZS 2891.9.2 (pre-
saturation)
10 L031 13,14 2.475, 2.461 0.67
AS/NZS 2891.9.2 (pre-
saturation)
11 L025 11,50 2.474, 2.472 0.92
AS/NZS 2891.9.2 (pre-
saturation)
12 L040 5,77 2457, 2465 122834.53
AS/NZS 2891.9.2 (pre-
saturation)
Avg 207.23
STD 694.15
Max 2465.00
Min 0.00
Median 2.45
No. data 24
Q1 2.442
Q3 2.469
IQR 0.027
NormIQR 0.020
RobustCV 0.82
U of Med 0.005
Page | 108 AAPA Proficiency 2018 v1.2
Table 54: z-scores: Stream 5 – Wheel Tracking: Slab thickness
Position LAB ID Sample Number Result z score Test Method
1 L022 1,2 50.1, 50.2 AGPT/T231
2 L040 5,77 50.3, 49.8 AGPT/T231
3 L039 55,64 49.8, 0 AGPT/T231
4 L031 13,14 50, 50 AGPT/T231
5 L033 27,47 50.1, 50 AGPT/T231
6 L028 20,32 50, 50 AGPT/T231
7 L018 99,37 50, 50 AGPT/T231
8 L025 11,50 50, 50 AGPT/T231
9 L057 4,10 50, 50 AGPT/T231
10 L001 24,18 50, 50 AGPT/T231
11 L049 58,60 50.2, 49.8 AGPT/T231
12 L050 21,90 50, 50 AGPT/T231
Avg 47.93
STD 10.21
Max 50.30
Min 0.00
Median 50.00
No. data 24
Q1 50.000
Q3 50.000
IQR 0.000
NormIQR 0.000
RobustCV 0.00
U of Med 0.000
Page | 109 AAPA Proficiency 2018 v1.2
Table 55: z-scores: Stream 5 – Wheel Tracking: Final tracking depth - Average
Position LAB ID Sample Number Result z score Test Method
1 L039 55,64 3.1, 0 -1.78 AGPT/T231
2 L022 1,2 2.3, 2.2 -1.03 AGPT/T231
3 L033 27,47 2.4, 2.34 -0.90 AGPT/T231
4 L025 11,50 2.3, 2.8 -0.70 AGPT/T231
5 L040 5,77 2.7, 3.3 -0.22 AGPT/T231
6 L031 13,14 3.1, 3.1 -0.11 AGPT/T231
7 L050 21,90 3, 3.3 -0.05 AGPT/T231
8 L028 20,32 3.43, 3.46 0.26 AGPT/T231
9 L049 58,60 3.8, 4.1 0.81 AGPT/T231
10 L057 4,10 4.1, 4.3 1.08 AGPT/T231
11 L018 99,37 5.7, 3.5 1.51 AGPT/T231
12 L001 24,18 6.31, 4.81 2.55 AGPT/T231
Avg 3.31
STD 1.26
Max 6.31
Min 0.00
Median 3.20
No. data 24
Q1 2.625
Q3 3.875
IQR 1.250
NormIQR 0.927
RobustCV 28.96
U of Med 0.237
Page | 110 AAPA Proficiency 2018 v1.2
Table 56: z-scores: Stream 5 – Wheel Tracking: Central steady state tracking rate - Average
Position LAB ID Sample Number Result z score Test Method
1 L033 27,47 0, 0 -0.98 AGPT/T231
2 L018 99,37 0, 0 -0.98 AGPT/T231
3 L025 11,50 0, 0 -0.98 AGPT/T231
4 L001 24,18 0, 0 -0.98 AGPT/T231
5 L049 58,60 0, 0 -0.98 AGPT/T231
6 L039 55,64 0.11, 0 -0.31 AGPT/T231
7 L022 1,2 0.08, 0.08 0.00 AGPT/T231
8 L031 13,14 0.1, 0.09 0.18 AGPT/T231
9 L028 20,32 0.1, 0.11 0.31 AGPT/T231
10 L050 21,90 0.09, 0.13 0.37 AGPT/T231
11 L040 5,77 0.591, 0.717 7.04 AGPT/T231
12 L057 4,10 1.25, 1.22 14.16 AGPT/T231
Avg 0.19
STD 0.37
Max 1.25
Min 0.00
Median 0.08
No. data 24
Q1 0.000
Q3 0.110
IQR 0.110
NormIQR 0.082
RobustCV 101.93
U of Med 0.021
Page | 111 AAPA Proficiency 2018 v1.2
Table 57: z-scores: Stream 5 – Wheel Tracking: Average steady state tracking rate - Average
Position LAB ID Sample Number Result z score Test Method
1 L033 27,47 0, 0 -0.98 AGPT/T231
2 L018 99,37 0, 0 -0.98 AGPT/T231
3 L025 11,50 0, 0 -0.98 AGPT/T231
4 L001 24,18 0, 0 -0.98 AGPT/T231
5 L049 58,60 0, 0 -0.98 AGPT/T231
6 L039 55,64 0.11, 0 -0.31 AGPT/T231
7 L022 1,2 0.08, 0.08 0.00 AGPT/T231
8 L031 13,14 0.11, 0.11 0.37 AGPT/T231
9 L050 21,90 0.1, 0.12 0.37 AGPT/T231
10 L028 20,32 0.11, 0.13 0.49 AGPT/T231
11 L040 5,77 0.112, 0.13 0.50 AGPT/T231
12 L057 4,10 0.18, 0.19 1.28 AGPT/T231
Avg 0.07
STD 0.07
Max 0.19
Min 0.00
Median 0.08
No. data 24
Q1 0.000
Q3 0.111
IQR 0.111
NormIQR 0.082
RobustCV 102.39
U of Med 0.021
Page | 112 AAPA Proficiency 2018 v1.2
Table 58: z-scores: Stream 6 – Moisture Sensitivity: Average compacted bulk density - unconditioned
Position LAB ID Sample Number Result z score Test Method
1 L031 6,9
2.346,
2.354, 2.348 -2.22
AS/NZS 2891.9.2 (pre-
saturation)
2 L026 49,49
2.356,
2.351, 2.362 -1.59
AS/NZS 2891.9.2 (pre-
saturation)
3 L016 63,84
2.361, 2.36,
2.363 -1.14
AS/NZS 2891.9.2 (pre-
saturation)
4 L005 46,48
2.363,
2.361, 2.364 -1.02
AS/NZS 2891.9.2 (pre-
saturation)
5 L022 31,68
2.373,
2.361, 2.356 -0.96
AS/NZS 2891.9.2 (pre-
saturation)
6 L025 43,44
2.366,
2.367, 2.367 -0.66
AS/NZS 2891.9.2 (pre-
saturation)
7 L026 94,94
2.368,
2.363, 2.371 -0.60
AS/NZS 2891.9.2 (pre-
saturation)
8 L026 72,72
2.364,
2.369, 2.377 -0.36
AS/NZS 2891.9.2 (pre-
saturation)
9 L018 30,18
2.367,
2.368, 2.376 -0.33
AS/NZS 2891.9.2 (pre-
saturation)
10 L002 33,100
2.373,
2.367, 2.377 -0.15
AS/NZS 2891.9.2 (pre-
saturation)
11 L058 33,100
2.373,
2.367, 2.377 -0.15
AS/NZS 2891.9.2 (pre-
saturation)
12
L012 -
NBA 56,56
2.378,
2.376, 2.376 0.24
AS/NZS 2891.9.2 (pre-
saturation)
13 L011 42,29
2.374,
2.378, 2.379 0.27
AS/NZS 2891.9.2 (pre-
saturation)
14
L012 -
WBU 86,86
2.378,
2.374, 2.383 0.39
AS/NZS 2891.9.2 (pre-
saturation)
15 L033 74,92
2.38, 2.371,
2.387 0.48
AS/NZS 2891.9.2 (pre-
saturation)
16 L029 57,85
2.381,
2.379, 2.38 0.54
AS/NZS 2891.9.2 (pre-
saturation)
17 L049 19,3
2.369,
2.389, 2.382 0.54
AS/NZS 2891.9.2 (pre-
saturation)
18 L028 97,69
2.382,
2.383, 2.38 0.69
AS/NZS 2891.9.2 (pre-
saturation)
19 L029 57,85
2.391,
2.379, 2.38 0.84
AS/NZS 2891.9.2 (pre-
saturation)
20 L039 52,70
2.387,
2.387, 2.397 1.47
AS/NZS 2891.9.2 (pre-
saturation)
21 L026 73,73
2.398,
2.389, 2.384 1.47
AS/NZS 2891.9.2 (pre-
saturation)
Avg 2.37
STD 0.01
Max 2.40
Min 2.35
Median 2.37
No. data 63
Q1 2.365
Q3 2.380
IQR 0.015
NormIQR 0.011
RobustCV 0.47
U of Med 0.002
Page | 113 AAPA Proficiency 2018 v1.2
Table 59: z-scores: Stream 6 – Moisture Sensitivity: Average compacted bulk density - conditioned
Position LAB ID Sample Number Result z score Test Method
1 L005 46,48
2.354,
2.345, 2.332 -2.46
AS/NZS 2891.9.2 (pre-
saturation)
2 L031 6,9
2.348,
2.349, 2.353 -1.89
AS/NZS 2891.9.2 (pre-
saturation)
3 L022 31,68
2.35, 2.359,
2.359 -1.35
AS/NZS 2891.9.2 (pre-
saturation)
4 L016 63,84
2.361,
2.364, 2.36 -0.84
AS/NZS 2891.9.2 (pre-
saturation)
5 L026 49,49
2.354,
2.366, 2.366 -0.81
AS/NZS 2891.9.2 (pre-
saturation)
6 L025 43,44
2.362,
2.366, 2.363 -0.66
AS/NZS 2891.9.2 (pre-
saturation)
7 L026 94,94
2.369, 2.36,
2.372 -0.36
AS/NZS 2891.9.2 (pre-
saturation)
8
L012 -
WBU 86,86
2.365,
2.368, 2.371 -0.27
AS/NZS 2891.9.2 (pre-
saturation)
9 L011 42,29
2.367,
2.366, 2.372 -0.24
AS/NZS 2891.9.2 (pre-
saturation)
10 L029 57,85
2.369,
2.375, 2.369 0.00
AS/NZS 2891.9.2 (pre-
saturation)
11 L029 57,85
2.369,
2.375, 2.369 0.00
AS/NZS 2891.9.2 (pre-
saturation)
12 L026 72,72
2.374,
2.377, 2.37 0.24
AS/NZS 2891.9.2 (pre-
saturation)
13 L018 30,18
2.373, 2.37,
2.38 0.30
AS/NZS 2891.9.2 (pre-
saturation)
14 L049 19,3
2.377,
2.362, 2.386 0.36
AS/NZS 2891.9.2 (pre-
saturation)
15 L026 73,73
2.375,
2.377, 2.38 0.57
AS/NZS 2891.9.2 (pre-
saturation)
16
L012 -
NBA 56,56
2.376,
2.377, 2.383 0.69
AS/NZS 2891.9.2 (pre-
saturation)
17 L033 74,92
2.376,
2.378, 2.388 0.87
AS/NZS 2891.9.2 (pre-
saturation)
18 L002 33,100
2.381,
2.379, 2.382 0.87
AS/NZS 2891.9.2 (pre-
saturation)
19 L058 33,100
2.381,
2.379, 2.382 0.87
AS/NZS 2891.9.2 (pre-
saturation)
20 L028 97,69
2.386,
2.381, 2.377 0.93
AS/NZS 2891.9.2 (pre-
saturation)
21 L039 52,70
2.388,
2.388, 2.385 1.44
AS/NZS 2891.9.2 (pre-
saturation)
Avg 2.37
STD 0.01
Max 2.39
Min 2.33
Median 2.37
No. data 63
Q1 2.364
Q3 2.379
IQR 0.015
NormIQR 0.011
RobustCV 0.47
U of Med 0.002
Page | 114 AAPA Proficiency 2018 v1.2
Table 60: z-scores: Stream 6 – Moisture Sensitivity: Average compacted height - unconditioned
Position LAB ID Sample Number Result z score Test Method
1 L026 94,94 61, 61, 61 -4.38
AS/NZS 2891.9.2 (pre-
saturation)
2 L026 72,72 62, 61, 61 -3.97
AS/NZS 2891.9.2 (pre-
saturation)
3 L026 73,73 62, 62, 61 -3.56
AS/NZS 2891.9.2 (pre-
saturation)
4 L018 30,18
63.8, 64,
63.8 -0.86
AS/NZS 2891.9.2 (pre-
saturation)
5 L002 33,100
64, 63.9,
63.8 -0.82
AS/NZS 2891.9.2 (pre-
saturation)
6 L058 33,100
64, 63.9,
63.8 -0.82
AS/NZS 2891.9.2 (pre-
saturation)
7 L026 49,49 64, 64, 64 -0.70
AS/NZS 2891.9.2 (pre-
saturation)
8 L005 46,48
64.4, 64.1,
64.1 -0.45
AS/NZS 2891.9.2 (pre-
saturation)
9 L016 63,84
64, 64.7,
64.1 -0.37
AS/NZS 2891.9.2 (pre-
saturation)
10 L028 97,69
64.35,
64.57, 64.35 -0.18
AS/NZS 2891.9.2 (pre-
saturation)
11
L012 -
WBU 86,86
64.5, 64.9,
64.3 0.00
AS/NZS 2891.9.2 (pre-
saturation)
12 L031 6,9
64.6, 64.8,
64.8 0.20
AS/NZS 2891.9.2 (pre-
saturation)
13 L049 19,3
65.2, 64.5,
64.9 0.36
AS/NZS 2891.9.2 (pre-
saturation)
14 L025 43,44 64.8, 65, 65 0.45
AS/NZS 2891.9.2 (pre-
saturation)
15
L012 -
NBA 56,56 65, 65, 65 0.53
AS/NZS 2891.9.2 (pre-
saturation)
16 L039 52,70
65.3, 65.2,
65 0.73
AS/NZS 2891.9.2 (pre-
saturation)
17 L029 57,85
65.1, 65.2,
65.3 0.77
AS/NZS 2891.9.2 (pre-
saturation)
18 L029 57,85
65.1, 65.2,
65.3 0.77
AS/NZS 2891.9.2 (pre-
saturation)
19 L033 74,92
65.3, 65.4,
65 0.81
AS/NZS 2891.9.2 (pre-
saturation)
20 L022 31,68
65.6, 65.6,
65.4 1.18
AS/NZS 2891.9.2 (pre-
saturation)
21 L011 42,29
65.6, 66,
65.8 1.51
AS/NZS 2891.9.2 (pre-
saturation)
Avg 64.23
STD 1.33
Max 66.00
Min 61.00
Median 64.57
No. data 63
Q1 64.000
Q3 65.100
IQR 1.100
NormIQR 0.815
RobustCV 1.26
U of Med 0.129
Page | 115 AAPA Proficiency 2018 v1.2
Table 61: z-scores: Stream 6 – Moisture Sensitivity: Average compacted height - conditioned
Position LAB ID Sample Number Result z score Test Method
1 L026 94,94 60, 62, 62 -3.78
AS/NZS 2891.9.2 (pre-
saturation)
2 L026 72,72 62, 62, 61 -3.41
AS/NZS 2891.9.2 (pre-
saturation)
3 L026 73,73 62, 62, 62 -3.04
AS/NZS 2891.9.2 (pre-
saturation)
4 L026 49,49 64, 63, 63 -1.54
AS/NZS 2891.9.2 (pre-
saturation)
5 L018 30,18
63.9, 63.6,
64 -0.97
AS/NZS 2891.9.2 (pre-
saturation)
6 L058 33,100
64.9, 63.8,
63.7 -0.64
AS/NZS 2891.9.2 (pre-
saturation)
7 L002 33,100
65.3, 63.7,
63.9 -0.45
AS/NZS 2891.9.2 (pre-
saturation)
8 L005 46,48
64.3, 64.4,
64.4 -0.37
AS/NZS 2891.9.2 (pre-
saturation)
9 L028 97,69
64.39,
64.18, 64.67 -0.32
AS/NZS 2891.9.2 (pre-
saturation)
10 L016 63,84
64.2, 64.5,
64.6 -0.30
AS/NZS 2891.9.2 (pre-
saturation)
11 L049 19,3
64.8, 64.6,
64.6 -0.04
AS/NZS 2891.9.2 (pre-
saturation)
12
L012 -
WBU 86,86
64.7, 64.6,
64.8 0.00
AS/NZS 2891.9.2 (pre-
saturation)
13 L031 6,9
64.7, 64.8,
64.8 0.07
AS/NZS 2891.9.2 (pre-
saturation)
14 L025 43,44 65, 64.9, 65 0.30
AS/NZS 2891.9.2 (pre-
saturation)
15
L012 -
NBA 56,56 65, 65, 64.9 0.30
AS/NZS 2891.9.2 (pre-
saturation)
16 L039 52,70
65.1, 65.3,
65.1 0.52
AS/NZS 2891.9.2 (pre-
saturation)
17 L033 74,92
65.2, 65.2,
65.1 0.52
AS/NZS 2891.9.2 (pre-
saturation)
18 L011 42,29
65.4, 65.2,
65.1 0.60
AS/NZS 2891.9.2 (pre-
saturation)
19 L029 57,85
65.2, 65.6,
65.2 0.71
AS/NZS 2891.9.2 (pre-
saturation)
20 L029 57,85
65.2, 65.6,
65.2 0.71
AS/NZS 2891.9.2 (pre-
saturation)
21 L022 31,68
65.4, 65.6,
65.6 0.94
AS/NZS 2891.9.2 (pre-
saturation)
Avg 64.27
STD 1.24
Max 65.60
Min 60.00
Median 64.70
No. data 63
Q1 63.900
Q3 65.100
IQR 1.200
NormIQR 0.890
RobustCV 1.37
U of Med 0.140
Page | 116 AAPA Proficiency 2018 v1.2
Table 62: z-scores: Stream 6 – Moisture Sensitivity: Average degree of saturation of vacuum saturated specimens
Position LAB ID Sample Number Result z score Test Method
1 L039 52,70
55.7, 55.3,
56.1 -1.59
AS/NZS 2891.9.2 (pre-
saturation)
2 L018 30,18
59.8, 61.6,
58.9 -0.99
AS/NZS 2891.9.2 (pre-
saturation)
3 L029 57,85 59, 62, 63 -0.82
AS/NZS 2891.9.2 (pre-
saturation)
4 L029 57,85 59, 62, 63 -0.82
AS/NZS 2891.9.2 (pre-
saturation)
5 L033 74,92
55.5, 67.1,
67.2 -0.56
AS/NZS 2891.9.2 (pre-
saturation)
6 L049 19,3
64.6, 64.8,
62.5 -0.47
AS/NZS 2891.9.2 (pre-
saturation)
7 L026 94,94
79.5, 57.1,
60.3 -0.24
AS/NZS 2891.9.2 (pre-
saturation)
8 L005 46,48
66.1, 66,
65.2 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
9
L012 -
NBA 56,56
66.8, 67.4,
65.6 -0.11
AS/NZS 2891.9.2 (pre-
saturation)
10 L026 49,49
72.8, 66.3,
64.9 0.08
AS/NZS 2891.9.2 (pre-
saturation)
11 L011 42,29
69.2, 67.5,
68.2 0.12
AS/NZS 2891.9.2 (pre-
saturation)
12 L031 6,9
64.7, 65.5,
77.4 0.24
AS/NZS 2891.9.2 (pre-
saturation)
13 L028 97,69
67.4, 71.1,
70.9 0.33
AS/NZS 2891.9.2 (pre-
saturation)
14 L026 73,73
58.4, 77.2,
74.5 0.36
AS/NZS 2891.9.2 (pre-
saturation)
15 L025 43,44
70.8, 70.2,
70.1 0.40
AS/NZS 2891.9.2 (pre-
saturation)
16 L026 72,72
73.1, 70.3,
72.8 0.63
AS/NZS 2891.9.2 (pre-
saturation)
17
L012 -
WBU 86,86
69.9, 78.2,
72.3 0.82
AS/NZS 2891.9.2 (pre-
saturation)
18 L002 33,100
74.8, 75.6,
72.4 0.93
AS/NZS 2891.9.2 (pre-
saturation)
19 L058 33,100
74.8, 75.6,
72.4 0.93
AS/NZS 2891.9.2 (pre-
saturation)
20 L022 31,68
76.4, 79.1,
73.6 1.22
AS/NZS 2891.9.2 (pre-
saturation)
21 L016 63,84
75.1, 78.7,
76.7 1.28
AS/NZS 2891.9.2 (pre-
saturation)
Avg 67.94
STD 6.67
Max 79.50
Min 55.30
Median 67.40
No. data 63
Q1 63.000
Q3 72.950
IQR 9.950
NormIQR 7.376
RobustCV 10.94
U of Med 1.165
Page | 117 AAPA Proficiency 2018 v1.2
Table 63: z-scores: Stream 6 – Moisture Sensitivity: Average swell of moisture conditioned specimens
Position LAB ID Sample Number Result z score Test Method
1 L039 52,70 0.2, 0, -0.2 -1.01
AS/NZS 2891.9.2 (pre-
saturation)
2 L022 31,68 0.2, 0.2, -0.3 -0.90
AS/NZS 2891.9.2 (pre-
saturation)
3 L011 42,29 0.2, 0.2, 0.2 -0.34
AS/NZS 2891.9.2 (pre-
saturation)
4 L029 57,85 0.3, 0.1, 0.2 -0.34
AS/NZS 2891.9.2 (pre-
saturation)
5 L029 57,85 0.3, 0.1, 0.2 -0.34
AS/NZS 2891.9.2 (pre-
saturation)
6 L031 6,9 0.3, 0.1, 0.3 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
7
L012 -
WBU 86,86 0.9, -0.4, 0.2 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
8 L018 30,18 0.5, 0.4, 0 0.00
AS/NZS 2891.9.2 (pre-
saturation)
9 L025 43,44 0.3, 0.3, 0.3 0.00
AS/NZS 2891.9.2 (pre-
saturation)
10
L012 -
NBA 56,56 0.2, 0.7, 0 0.00
AS/NZS 2891.9.2 (pre-
saturation)
11 L049 19,3 0.5, 0.7, 0.5 0.90
AS/NZS 2891.9.2 (pre-
saturation)
12 L002 33,100 1.4, 0.1, 0.5 1.24
AS/NZS 2891.9.2 (pre-
saturation)
13 L058 33,100 2, 0, 0 1.24
AS/NZS 2891.9.2 (pre-
saturation)
14 L016 63,84 4, 4.2, 3.8 12.48
AS/NZS 2891.9.2 (pre-
saturation)
15 L028 97,69 3.8, 4.8, 4.1 13.26
AS/NZS 2891.9.2 (pre-
saturation)
16 L033 74,92
17 L005 46,48
18 L026 73,73
19 L026 72,72
20 L026 94,94
21 L026 49,49
Avg 0.81
STD 1.38
Max 4.80
Min -0.40
Median 0.30
No. data 45
Q1 0.100
Q3 0.500
IQR 0.400
NormIQR 0.297
RobustCV 98.84
U of Med 0.055
Page | 118 AAPA Proficiency 2018 v1.2
Table 64: z-scores: Stream 6 – Moisture Sensitivity: Average tensile strength - unconditioned
Position LAB ID
Sample
Number Result z score Test Method
1 L026 49,49 14.2, 14.9, 15.8 -6.98
AS/NZS 2891.9.2 (pre-
saturation)
2 L022 31,68 900, 864, 877 -1.35
AS/NZS 2891.9.2 (pre-
saturation)
3 L005 46,48 949, 931, 797 -1.27
AS/NZS 2891.9.2 (pre-
saturation)
4 L026 94,94 966, 1021, 928 -0.76
AS/NZS 2891.9.2 (pre-
saturation)
5 L031 6,9 1003, 1010, 945 -0.66
AS/NZS 2891.9.2 (pre-
saturation)
6 L016 63,84 1032, 964, 1015 -0.55
AS/NZS 2891.9.2 (pre-
saturation)
7 L011 42,29 997, 997, 1065 -0.44
AS/NZS 2891.9.2 (pre-
saturation)
8 L026 72,72 968, 1044, 1110 -0.31
AS/NZS 2891.9.2 (pre-
saturation)
9 L029 57,85
1056.1, 1082.7,
993.4 -0.29
AS/NZS 2891.9.2 (pre-
saturation)
10 L029 57,85
1056.1, 1082.7,
993.4 -0.29
AS/NZS 2891.9.2 (pre-
saturation)
11 L049 19,3
1003, 1172,
1143 0.12
AS/NZS 2891.9.2 (pre-
saturation)
12 L018 30,18
1101, 1088,
1141 0.14
AS/NZS 2891.9.2 (pre-
saturation)
13 L025 43,44
1151, 1089,
1175 0.33
AS/NZS 2891.9.2 (pre-
saturation)
14 L039 52,70
1080, 1122,
1243 0.39
AS/NZS 2891.9.2 (pre-
saturation)
15
L012 -
NBA 56,56
1182, 1144,
1183 0.53
AS/NZS 2891.9.2 (pre-
saturation)
16 L033 74,92
1234.1, 1155.7,
1194.9 0.70
AS/NZS 2891.9.2 (pre-
saturation)
17 L028 97,69
1200, 1226,
1305 1.01
AS/NZS 2891.9.2 (pre-
saturation)
18 L002 33,100
1246, 1205,
1384 1.24
AS/NZS 2891.9.2 (pre-
saturation)
19 L058 33,100
1246, 1205,
1384 1.24
AS/NZS 2891.9.2 (pre-
saturation)
20 L026 73,73
1411, 1360,
1292 1.73
AS/NZS 2891.9.2 (pre-
saturation)
21
L012 -
WBU 86,86
1283, 1640,
1492 2.50
AS/NZS 2891.9.2 (pre-
saturation)
Avg 1066.24
STD 284.32
Max 1640.00
Min 14.20
Median 1088.00
No. data 63
Q1 995.200
Q3 1202.500
IQR 207.300
NormIQR 153.671
RobustCV 14.12
U of Med 24.265
Page | 119 AAPA Proficiency 2018 v1.2
Table 65: z-scores: Stream 6 – Moisture Sensitivity: Average tensile strength - conditioned
Position LAB ID Sample Number Result z score Test Method
1 L026 49,49
12.1, 12.3,
12.2 -7.44
AS/NZS 2891.9.2 (pre-
saturation)
2 L022 31,68
881, 850,
874 -0.93
AS/NZS 2891.9.2 (pre-
saturation)
3 L031 6,9
908, 872,
850 -0.87
AS/NZS 2891.9.2 (pre-
saturation)
4 L026 94,94
943, 780,
974 -0.70
AS/NZS 2891.9.2 (pre-
saturation)
5 L016 63,84
892, 935,
904 -0.61
AS/NZS 2891.9.2 (pre-
saturation)
6 L026 72,72
911, 892,
949 -0.56
AS/NZS 2891.9.2 (pre-
saturation)
7 L005 46,48
888, 942,
931 -0.54
AS/NZS 2891.9.2 (pre-
saturation)
8 L029 57,85
904.8,
999.8, 871.9 -0.50
AS/NZS 2891.9.2 (pre-
saturation)
9 L029 57,85
904.8,
999.8, 871.9 -0.50
AS/NZS 2891.9.2 (pre-
saturation)
10 L011 42,29
853, 941,
1152 -0.07
AS/NZS 2891.9.2 (pre-
saturation)
11
L012 -
NBA 56,56
985, 1060,
1008 0.20
AS/NZS 2891.9.2 (pre-
saturation)
12 L049 19,3
1052, 991,
1054 0.31
AS/NZS 2891.9.2 (pre-
saturation)
13 L018 30,18
1055, 1011,
1048 0.36
AS/NZS 2891.9.2 (pre-
saturation)
14 L039 52,70
1113, 956,
1055 0.38
AS/NZS 2891.9.2 (pre-
saturation)
15 L002 33,100
873, 1129,
1135 0.42
AS/NZS 2891.9.2 (pre-
saturation)
16 L058 33,100
873, 1129,
1135 0.42
AS/NZS 2891.9.2 (pre-
saturation)
17 L025 43,44
1031, 1053,
1067 0.45
AS/NZS 2891.9.2 (pre-
saturation)
18 L033 74,92
1106.7,
1038.2,
1136.1 0.78
AS/NZS 2891.9.2 (pre-
saturation)
19 L028 97,69
1218, 1072,
1052 0.93
AS/NZS 2891.9.2 (pre-
saturation)
20
L012 -
WBU 86,86
1076, 1231,
1145 1.21
AS/NZS 2891.9.2 (pre-
saturation)
21 L026 73,73
1176, 1133,
1153 1.24
AS/NZS 2891.9.2 (pre-
saturation)
Avg 953.36
STD 237.31
Max 1231.00
Min 12.10
Median 991.00
No. data 63
Q1 892.000
Q3 1069.500
IQR 177.500
NormIQR 131.581
RobustCV 13.28
U of Med 20.777
Page | 120 AAPA Proficiency 2018 v1.2
Table 66: z-scores: Stream 6 – Moisture Sensitivity: Tensile strength ratio
Position LAB ID Sample Number Result z score Test Method
1
L012 -
WBU 86,86 78 -2.70
AS/NZS 2891.9.2 (pre-
saturation)
2 L002 33,100 82 -1.80
AS/NZS 2891.9.2 (pre-
saturation)
3 L026 49,49 82 -1.80
AS/NZS 2891.9.2 (pre-
saturation)
4 L058 33,100 82 -1.80
AS/NZS 2891.9.2 (pre-
saturation)
5 L026 73,73 85 -1.12
AS/NZS 2891.9.2 (pre-
saturation)
6
L012 -
NBA 56,56 87 -0.67
AS/NZS 2891.9.2 (pre-
saturation)
7 L026 72,72 88 -0.45
AS/NZS 2891.9.2 (pre-
saturation)
8 L029 57,85 88.6 -0.31
AS/NZS 2891.9.2 (pre-
saturation)
9 L031 6,9 89 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
10 L029 57,85 89 -0.22
AS/NZS 2891.9.2 (pre-
saturation)
11 L028 97,69 90 0.00
AS/NZS 2891.9.2 (pre-
saturation)
12 L039 52,70 91 0.22
AS/NZS 2891.9.2 (pre-
saturation)
13 L016 63,84 91 0.22
AS/NZS 2891.9.2 (pre-
saturation)
14 L033 74,92 92 0.45
AS/NZS 2891.9.2 (pre-
saturation)
15 L025 43,44 92 0.45
AS/NZS 2891.9.2 (pre-
saturation)
16 L049 19,3 93 0.67
AS/NZS 2891.9.2 (pre-
saturation)
17 L026 94,94 93 0.67
AS/NZS 2891.9.2 (pre-
saturation)
18 L018 30,18 94 0.90
AS/NZS 2891.9.2 (pre-
saturation)
19 L011 42,29 96 1.35
AS/NZS 2891.9.2 (pre-
saturation)
20 L022 31,68 99 2.02
AS/NZS 2891.9.2 (pre-
saturation)
21 L005 46,48 103 2.92
AS/NZS 2891.9.2 (pre-
saturation)
Avg 89.74
STD 5.94
Max 103.00
Min 78.00
Median 90.00
No. data 21
Q1 87.000
Q3 93.000
IQR 6.000
NormIQR 4.448
RobustCV 4.94
U of Med 1.216
Page | 121 AAPA Proficiency 2018 v1.2
6.0 REFERENCES
Proficiency testing Australia, 2016 Guide to Proficiency Testing Australia
http://www.pta.asn.au/documents/Guide-to-Proficiency-Testing-Australia.pdf
ISO/IEC 17043:2010 Conformity Assessment – General Requirements for Proficiency testing
Page | 122 AAPA Proficiency 2018 v1.2
7.0 APPENDIX A TEST INSTRUCTIONS
Instruction sheet for test stream 1: Asphalt
Description
120 samples of loose mix will be distributed to 50+ laboratories registered for the asphalt testing test stream of the
AAPA 2018/19 Proficiency Testing Round.
Participants are encouraged to complete the following tests on the loose mix sample provided:
- Bitumen content and grading AS/NZS 2891.3.1, or AS/NZS 2891.3.3
- Max density AS/NZS 2891.7.1
- Marshall compaction AS/NZS 2891.5
- Marshall stability and flow AS/NZS 2891.5
- Gyratory compaction AS/NZS 2891.2.2
- Bulk density (Presaturation) AS/NZS 2891.9.2
Where the laboratory does not hold NATA accreditation for the standard test methods indicated above, results for an
equivalent local test method may be reported, but please note that the proficiency z-score analysis will not be valid for
such results.
Report results using webform
Please note that you will need the Laboratory ID Code, which has been sent to you via e-mail to complete the webform.
Submit results by 15 April 2019.
Procedure
Loose mix samples will be sent to laboratories in 8kg containers. Each container has a unique sample number.
The loose mix is a sample of AC10 with C320
Sample preparation:
Samples to be prepared in accordance with AS2891.1.1.
Reheating:
- Preheat the compaction mould in the oven
- Compaction Temperature – 150+/- 3deg
- Place approx. Sample Mass – 1200 – 1250g in the mould
- Place in the oven for 1hr +/- 5 min (Ensure the oven temperature allows temperature to be within range) and then compact samples
Test plan and approximate material quantities
1. Binder content & grading: single test (approx. 1250g) 2. Maximum Density – duplicate test (approx. 1000g) report both results 3. Compacted Density
a. Marshall 50 blow compactive effort– compact 2 briquettes (2 x approx. 1250g) and report bulk density of each. Clearly mark briquettes as sample number #1 & #2
b. Gyratory 80 cycles, 100 mm diameter mould – compact 2 briquettes (2 x approx. 1250g) and report bulk density of each
Page | 123 AAPA Proficiency 2018 v1.2
4. Marshall Stability & Flow. Report results for Marshall briquettes #1 and #2
Reporting
Use the webform to report:
- Binder content
- Aggregate grading
- Maximum density
- Compacted bulk density of each specimen
- Height of compacted specimens
- Stability and flow results
Page | 124 AAPA Proficiency 2018 v1.2
Instruction sheet for test stream 2: Binder Recovery
Description
13 laboratories registered for the RAP binder extraction and testing stream of the AAPA 2018/19 Proficiency Testing
Round. Samples of asphalt mix will be sent to the participating laboratories for extraction of binder and characterisation
testing. An additional tin with a bitumen sample will be sent as well for comparative viscosity testing
Test methods:
- Binder extraction AGPT/T191, ASTM D5404, or ASTM D1856
- Viscosity of binder using Dynamic Shear Rheometer (DSR) AGPT/T192
- Capillary Viscosity at AS/NZS 2341.2
Where the laboratory does not hold NATA accreditation for these test methods, results for an equivalent local test
method may be reported, but please note that the statistical analysis may not be valid for such results.
Report results using webform
Please note that you will need the Laboratory ID Code, which has been sent to you in a separate e-mail to complete
the webform.
Submit results by 15 April 2019
Procedure
Loose asphalt mix samples will be sent to laboratories in 8kg containers. A separate 1 litre tin with a bitumen sample
is provided as well. Each container has a unique sample number.
Tests on extracted binder
- Extract binder from loose mix in accordance with AGPT/T191, ASTM D5404, or ASTM D1856
- Determine viscosity of extracted binder using DSR AGPT/T192
- Optional: Determine viscosity at 60 ⁰C of extracted binder using Capillary Viscometer AS/NZS 2341.2
Tests on bitumen sample
- Determine viscosity of bitumen sample using DSR AGPT/T192
- Determine Capillary Viscosity at 60 ⁰C of bitumen sample in accordance with AS/NZS 2341.2
Reporting
Use webform to report:
Extracted binder:
- Average of duplicate complex viscosity results (η*)
- Optional: Capillary viscosity at 60 ⁰C
Bitumen sample:
Page | 125 AAPA Proficiency 2018 v1.2
- Average of duplicate complex viscosity results (η*)
- Capillary viscosity at 60 ⁰C
Page | 126 AAPA Proficiency 2018 v1.2
Instruction sheet for test stream 3: Aggregate
Description
Over 30 laboratories have registered for the coarse aggregate test stream of the AAPA 2018/19 Proficiency Testing
Round.
Participants are encouraged to complete the following tests:
- Particle density and water absorption AS1141.6.1, or AS1141.6.2
- Particle size distribution AS1141.11.1
- Average least dimension (ALD) nominal 10 mm and greater direct measurement AS1141.20.1
- Average least dimension (ALD) Calculation by nomograph AS1141.20.3
- Flakiness index AS1141.15
Where the laboratory does not hold NATA accreditation for these Australian Standard methods, results for an equivalent
local test method may be reported, but please note that the proficiency z-score analysis will not be valid for such results.
Report results using webform
Please note that to complete the webform you will need the Laboratory ID Code, which has been sent to you by e-
mail.
Submit results by 15 April 2019.
Procedure
Aggregate
A sample will be supplied of approximately 15kg of 14mm nominal maximum size aggregate
Sample preparation:
- Dry sample to constant mass in oven at 105 ± 5 ⁰C
- Before any testing, mix the sample and then cone and quarter or rifle thoroughly
Reporting
Use the webform to report:
- Particle density (apparent)
- Particle density (dry basis)
- Particle density (saturated surface dry)
- Water absorption
- Particle size distribution
- Flakiness index
- Average least dimension by direct measurement (nominal 10mm and greater)
- Average least dimension by calculation nomograph
Page | 127 AAPA Proficiency 2018 v1.2
Instruction sheet for test stream 4: Resilient Modulus
Description
16 laboratories registered for the Resilient Modulus stream of the AAPA 2018/19 Proficiency Testing Round. Samples
of loose mix will be sent to the participating laboratories for preparation of Resilient Modulus Samples
Test method: AS/NZS 2891.13.1
Where the laboratory does not hold NATA accreditation for this Australian Standard method, results for an equivalent
local test method may be reported, but please note that the proficiency z-score analysis will not be valid for such results.
Report results using webform
Please note that you will need the Laboratory ID Code, which has been sent to you in a separate e-mail to complete
the webform.
Submit results by 28 June 2019
Procedure
Loose asphalt mix samples will be sent to laboratories in 8kg containers. Each container has a unique sample number.
Where material from two containers is used to prepare the resilient modulus samples, please report numbers of both
containers.
The loose mix is a sample of AC10 C320
Stage 1:
Compaction:
- Preheat the compaction moulds in the oven
- Heat the proficiency test sample provided to about 160°C
- Prepare at least 3 x 100 mm diameter Gyropac specimens, using a mass of 1,250 g.
- Condition these samples for 1hr ± 5 min in an oven at compaction temperature 150 °C ± 3°C (ensure the
oven temperature allows temperature to be within this range)
- Compact each asphalt sample to 120 cycles
o Note:
All compacted specimens need to be within the height range of 35 – 70 mm
Mass of material may be adjusted to comply with the height range
Stage 2:
Maximum Density:
- Obtain two suitably size test samples and undertake maximum density testing on the preheated mix
supplied
Stage 3:
Volumetrics:
- Determine the Bulk Density for each Gyropac sample
- Use these Bulk Density and Max Density values obtained to calculate the Air Voids for each sample
- For the three specimens used ensure that the air voids are within ± 0.5 % of the mean air voids
Page | 128 AAPA Proficiency 2018 v1.2
- Ensure these samples are then air-dried back to constant, before undertaking the resilient modulus
Sample numbering:
- Number the specimens selected for Resilient Modulus testing R1, R2 and R3
- For the three specimens used ensure that the air voids used are within ± 0.5 % of the mean air voids
Resilient modulus – Indirect tensile method
Settings:
- Haversine displacement load control (should be the default for this test)
- Target strain amplitude: 50 με
- Rise time 0.04 s
- Pulse repetition period 3.0 s
- Test temperature 25 ⁰C
Reporting
Use webform to report
Compacted density of each specimen
Height of each specimen
Diameter of each specimen
Maximum density results used for test
Air voids of compacted specimens based on compacted density of each specimen and maximum densities of supplied mix
Report average and coefficient of variation for five post peak pulses for:
- Resilient Modulus (MPa)
- Peak load (N) (optional)
- Recovered horizontal strain (με) (optional)
- 10% to 90 % rise time (ms) (optional)
Page | 129 AAPA Proficiency 2018 v1.2
Instruction sheet for test stream 5: Wheel Tracking
Description
11 laboratories registered for the Wheel Tracking Test stream of the AAPA 2018/19 Proficiency Testing Round.
Samples of loose mix will be sent to the participating laboratories for preparation of wheel tracking slabs
Test method: AGPT/T231
Where the laboratory does not hold NATA accreditation for this Austroads method, results for an equivalent local test
method may be reported, but please note that the proficiency z-score analysis will not be valid for such results.
Report results using webform
Please note that you will need the Laboratory ID Code, which has been sent to you in a separate e-mail to complete
the webform.
Submit results by 28 June 2019
Procedure
Loose asphalt mix samples will be sent to laboratories in 8kg containers. Each container has a unique sample number.
Three containers are provided to prepare two Wheel Tracking slabs.
The loose mix is a sample of AC10 C320
Sample preparation
Method: AGPT/T220
Target compacted sample thickness: 50 mm
Maximum density: Please use 2.579 t/m3
Reheating:
- Compaction Temperature – 150+/- 3deg
- Place in the oven for 1hr +/- 5 min (Ensure the oven temperature allows temperature to be within range) and then compact samples
Sample numbering
- Number the slabs S1, and S2.
Reporting
Use webform to report:
- Date of compaction of the specimen
- Date of wheel tracking test
- Maximum density value
- Slab thickness
- Bulk density of slabs
- Temperature of dummy specimen at start and end of test
Page | 130 AAPA Proficiency 2018 v1.2
- Number of load passes for each replicate
- Final tracking depth at completion of the test
- Average steady state tracking rate (optional)
- Central steady state tracking rate (optional)
Page | 131 AAPA Proficiency 2018 v1.2
Instruction sheet for test stream 6: Moisture Sensitivity
Description
15 laboratories have registered for the moisture sensitivity test stream of the AAPA 2018/19 Proficiency Testing Round.
Samples of loose mix will be sent to the participating laboratories for preparation of moisture sensitivity samples
Test method: AGPT/T232
Where the laboratory does not hold NATA accreditation for this Austroads method results for an equivalent local test
method may be reported, but please note that the proficiency z-score analysis will not be valid for such results.
Report results using webform
Please note that you will need the Laboratory ID Code, which has been sent to you in a separate e-mail to complete
the webform.
Submit results by 28 June 2019
Procedure
Loose mix samples will be sent to laboratories in 8kg containers. Each container has a unique sample number. Two
containers are provided for each moisture sensitivity test.
The loose mix is a sample of AC10 C320
Testing in accordance with AGPT/T232 including freeze/thaw conditioning
Maximum density: Please use 2.579 t/m3
Sample preparation
Reheating:
- Preheat the compaction mould in the oven
- Compaction Temperature – 150+/- 3deg
- Place in the oven for 1hr +/- 5 min (Ensure the oven temperature allows temperature to be within range) and then compact samples
Sample numbering
- 3 specimens to be used in "dry" unconditioned state to be labelled d1, d2 and d3.
- 3 specimens to be tested after moisture conditioning to be labelled c1, c2 and c3.
Reporting
Use the webform to report:
- Maximum density of loose mix
- Compacted bulk density of each specimen
- Height of each specimen
- Degree of saturation for vacuum saturated specimens
- Swell of moisture conditioned specimens
Page | 132 AAPA Proficiency 2018 v1.2
- Tensile strength of each specimen
- Tensile strength ratio
- Visual assessment of degree of stripping (if required by test method)
Head Office
2/20 Sabre Drive
Port Melbourne, VIC 3207
Telephone (03) 8416 4500