Hong Kong Association for Testing, Inspection and
Certification Ltd.
Professional Certification Scheme for
Testing Personnel
(Textiles and Garments Testing)
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Examination (CTT)
Disclaimer
Criteria, measurement techniques, methods and test standards as stipulated in respective Certification Criteria (CC01-CC06) are official documents. All examination questions are set based on these documents.
All Certification Criteria are available for download from HKTIC’s website www.hktic.org
Scope of Certification
Level
Testing technician (CTT)
Testing professional (CTP)
Scope of textiles and garments testing (TGT) - technique base and selected test standards
Color fastness and care performance (TGT – CA)
Construction and physical performance (TGT – CP)
Fibre analysis (TGT – FA)
Flammability safety (TGT – FS)
CTT : any one of the above
CTP: any two of the above
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Certification criteria
6 Certification Handbooks
CC01 - Chemical testing
CC02 – Construction materials testing
CC03 – Electrical products testing
CC04 – Microbiological testing
CC05 – Textiles and garments testing
CC06 – Toys and hardlines testing
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Certification criteria
Foreword
1- General
2-Scope of Certification
3-Eligibility for Certification
4-Examination Procedure
5-Application procedure for certification/examination
6-Appeal
7-Obligation
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Certification criteria
Appendix 1 Examination Syllabus and Specimen Questions of CTT
Appendix 2 Examination Syllabus and Specimen Questions of CTP
Appendix 3 Training courses approved by Certification Board
Appendix 4 Guidelines for counting CPDUs
Appendix 5 References
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Certification criteria
Foreword
Introduction of professional certification scheme for testing personnel (PCSTP)
Benefits of the scheme
General – define application of the document
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Certification CriteriaRoutes to be Certified
Pass in examination (Scheme)
Diploma in relevant discipline + 2 years
experience
≧10 years of experience
Testing technician
Complete all the required training courses
Certified Testing technician (CTT)
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Certification Criteria
Testing Professional
≧15 years of relevant experience , 5 years of
which shall be at a managerial position
CTT + 5 years of relevant supervisory experience post CTT
Complete all the required training courses
Pass in examination (Scheme)
Professional interview
Certified Testing Professional (CTP)
Bachelor degree in relevant discipline + 3 years relevant experience
HOKLAS AS+ 8 years of relevant
experience
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Certification criteria
HOKLAS approved signatory
with not less than 8 years of relevant experience (total relevant working experience); and
the scope of signatory approval covering the major measurement techniques or methods as stipulated in this Certification Handbook for the sub-category the certification is being sought
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Examination (CTT)
Part A (30/100)
Understanding of ISO/IEC 17025 (10%)
Ethics (10%)
Safety (10%)
Part B (70/100)
Techniques
Equipment
standards
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Examination (CTT)
Time = 120 minutes (2 hours)
Passing marks >=60/100
Questions:
40 multiple choice questions (4 choices)
1.5 marks each
10 short questions
4 mark each
Wrong answer for MC questions, deduce ½ of the mark i.e. 0.75
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Examination (CTT)
Part A MC 1.5@ SQ 4@ Sub-total (marks)
17025 4 1 10
Ethics 4 1 10
Safety 4 1 10
Part B Sub-total 30 (>=12)
Technical 28 7 70
Subtotal 70 (>=28)
Total 40 10 100 (>=60)
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Appendix 1 - CTT
Understanding of ISO17025 (Outline for CTT)
Document control
Verification of critical consumables
Technical records
Environmental conditions and pre-conditioning requirements
Sampling
Traceability of equipment and evaluation tests
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Appendix 1 - CTT
Understanding of ISO17025 (Outline for CTT)
Quality control
Concept of quality control plan
In process control checks to be implemented and their functions such as
control for care performance and color fastness tests
concept of laboratory control sample
replicate analysis
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Appendix 1 - CTT
Management system documents generated by the laboratory should be uniquely identified. What pieces of information, name at least 4, should be included for such identification.
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Appendix 1 - CTT
Laboratory safety (knowledge) General laboratory safety
Health and safety
Personal protection for handling samples and equipment
Precautions in performing flammability tests
Measures in using large and heavy equipment in the laboratory
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Appendix 1 - CTT
What are the duties of employees in a Workplace for
Health and Safety?
(a) Do not obstruct means of escape from a workplace
(b) Ensure exit doors are not locked or fastened
(c )Use protective equipment provided by the employer for
use in manual handling operations
(d) Take reasonable care for the safety and health of other
persons in the workplace
(A) (a), (b) and (c)
(B) (b), (c) and (d)
(C) (a), (c) and (d)
(D) All
Appendix 1 (CTT)
Prevention of Bribery Ordinance, Cap. 201
Corruption
Advantages
Improper influence
Confidentiality and proprietary right
CSTP01 “Regulations – Certification Scheme of Testing Personnel”
Code of ethics in general
Code of ethics in relation to employer
Code of ethics in relation to public
Obligation of Certified Testing Personnel
Use of Certification symbol and claim of certification status19
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Appendix 1 - CTT
According to the Prevention of Bribery Ordinance, name 2 things that are considered as advantages.
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Appendix 1 - CTT
Understanding on test standard and measurement techniques
Understanding of terms used for textiles and garments
Specimen preparation
Sample conditioning requirements
Knowledge of one sub-category as defined in Appendix 5
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Appendix 1 - CTT
Knowledge on general equipment and specific equipment
Concept of calibration and performance check
Length measurement
Cutting die
Temperature and humidity monitoring device
Selection of appropriate equipment in meeting the accuracy of the tests
Use of equipment for one sub-category as defined in Appendix 6
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Appendix 5 – sub-category
Color fastness and care performance tests
Knowledge on requirements of one of the two mandatory standards (ISO or AATCC and ASTM) for the following:
Colour Fastness Assessment, e.g. Light, Washing, Dry-cleaning, Hot Pressing, Perspiration, Water, etc.
Controls used for different visual tests
Care Performance Tests, e.g. Dimensional Stability to and Appearance after Washing
Assessment methods and related requirements of assessment room or chamber
Recording of results
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Appendix 5 – sub-category
Construction and physical performance Tests
Knowledge on requirements of one of the two mandatory standards (ISO or AATCC and ASTM) for the following:
Construction Tests for Fabric, e.g. Fabric Weight, Density, Yarn Size
Strength and Durability Tests, e.g. Tensile, Tear, Abrasion Resistance
Performance Tests required Visual Grading, e.g. Pilling Resistance, Snagging Resistance, etc.
Other Performance Tests, e.g. Air permeability, Water Repellency and Resistance, etc.
Knowledge on the above tests and factors affecting the results
Number of determinations required
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Appendix 5 – sub-category
Fibre analysis
Knowledge on requirements of the mandatory standards ( AATCC 20/20A) for the following:
Test Methods of Qualitative and Quantitative Analysis of Fibres and Blends
Extract Solvents of Textile Materials
Moisture Regain Determination
Types of fibres and expected results of solvent tests of different fibre type
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Appendix 5 – sub-category
Flammability safety
Knowledge on requirements of the mandatory standards (CFR (1610/1615/1616/1630/1631) and ASTM for the following:
Flammability Tests for Textile and Garments
Flammability Tests for Carpet and rug
Pre-conditioning requirements and requirements of testing chamber
Number of determinations and pre-treatment such as drycleaning for different test standard
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Appendix 6 - Equipment
Color fastness and and care performance tests (as an example)
Crockmeter
Drycleaning Cylinder
Fade-o-meter
Perspiration Tester
Wascator
Washer
Wira Steam Cylinder
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Appendix 6 – Equipment
Construction and Physical Performance Tests
Abrasion Tester (Inflated Diaphragm)
Abrasion Tester (Martindale)
Bursting Tester
Elmendorf Tearing Tester
Rain tester
Spray tester
ICI Pilling Box
Random Tumbler
Tensile tester
Temperature and humidity monitoring device
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Appendix 6 – Equipment
Fibre analysis
Microscope
Balance
FTIR
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Appendix 6 – Equipment
Flammability Safety
Flammability Tester (CFR1610)
Flammability Tester (CFR1615)
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Specimen questions
Color fastness and care performance
According to AATCC 135, which of the followings are the ballast used for the test?
A Bleached cotton sheeting (Wash load ballast type 1)
B 50/50 polyester/cotton bleached plain weave (Wash load ballast type 3)
C 100% polyester knitted fabric
D A + B
Please state the specification of the Crockmeter Test Cloth for color fastness to crocking (AATCC 8).
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Specimen questions
Construction and Physical Performance Tests
According to AATCC 22-2005 (water repellency test), which of the following is correct temperature of distilled water?
a. 21 ± 1ºC
b. 25 ± 1ºC
c. 7 ± 1ºC
d. Room temperature
How to mount the specimen into sample holder?MODIFIED MARTINDALE METHOD (ISO 12945-2)
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Specimen questions
Color fastness and care performance
According to EN 12127:1997, which of the following is correct drying temperature?
95 ± 3ºC
100 ± 3ºC
105 ± 3ºC
110 ± 3ºC
Please state the summary of 16 CFR Part 1610
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Specimen questions
Fibre Analysis Which of the following belongs/belong to vegetable
fibres?
(1) Cotton
(2) Hemp
(3) Linen
(4) Ramie
A. (1) only
B. (1) and (2) only
C. (2) and (3) only
D. (1), (2), (3) and (4)
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Specimen questions
Fibre Analysis
Briefly describe the steps for determining of moisture content in accordance with AATCC 20A-2010.
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Specimen questions
Flammability
Which of the below sleepwear garments should comply to the 16 CFR Part 1615 flammability requirements?
A. Loose-fitting Children's sleepwear
B. Loose-fitting Adult's sleepwear
C. Tight-fitting Adult's sleepwear
D. Infant garments size 9 months or smaller
Please state the summary of 16 CFR Part 1610 flammability test of clothing textiles.
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Specimen questions
Equipment
Which daily check(s) should be implemented for balance? Suggest the criteria for the daily check of a 3-digit balance with normal working range from 1 g to 200g.
END OF SESSION
Thank you
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Examination (CTP)
Part A (50%)
ISO/IEC 17025 + quality control (15%)
Ethics (10%)
Safety (5%)
Management (10%)
Measurement Uncertainty (10%)
Part B (50%)
Reporting, test standards and techniques
Equipment
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Examination (CTP)
Time = 180 minutes (3 hours)
Passing marks >=60/100
Questions:
30 multiple choice questions (4 choices)
1 mark each,
Wrong answer for MC questions, deduce ½ of the mark i.e. 0.5
6 short questions
5 mark each
2-3 long questions
2 x10 marks
1 x 20 marks
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Examination (CTP)
Part A MC 1@ SQ 5@ LQ (10-20) Sub-total (marks)
17025/quality 5 2 15
Ethics 5 1 10
Safety 5 5
Management 1 x 10 10
Uncertainty 5 1 10
Part B Sub-total 50 (>=20)
Technical 10 2 1 x 20, 1 x10
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Subtotal 50 (>=20)
Total 30 6 100 (>=60)
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Appendix 2 – CTP
Management requirements
Management skills
Manager’s Basic Functions
Time Management
Communication in Your Workplace
Team Building – Basic understanding of concepts
Delegation and Management of Generation Y
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Appendix 2 – CTP
You heard a loud noise and realize that one of your staff is pointing her finger at another staff. They were blaming each other for over looking a client’s request for a particular lab test, as a result the client file a complaint to Customer service department. The female staff is the supervisor and she complains that the other staff never read the request carefully, and is not the first time he overlooked the client’s request.
What will you do and what will be your concerns? What will be the worst case scenario for this situation? What will be your best case scenario in this case?
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Appendix 2 – CTP
Laboratory Management (Detailed Knowledge in the following aspects)
Document control
Review of contract
Subcontracting
Verification of critical consumables e.g.
chlorine content of hypochlorite; size and mass to area ratio of dummy loading fabrics
Difference between correction and corrective actions and control of non-conforming work
Preventive actions
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Appendix 2 – CTP
Technical records – test result, verification records, etc.
Environmental and sample conditioning requirement
Traceability (acceptable control for visual assessment)
Traceability (equipment)
Sub-sampling requirements
Sample identification and integrity within the laboratory
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Appendix 2 – CTP
Quality assurance procedures and plan
control for care performance and color fastness tests
identification of suitable laboratory control sample
Method verification
Minimum method verification such as precision criterion for different textiles and garments encountered
Participation in proficiency testing programme
Continuing competence
Statistical treatments of data and quality control requirement (detailed knowledge)
Basic statistics such as student-t test, Q test, normal
distribution and standard deviation
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Appendix 2 – CTP
Define corrective and preventive actions and illustrate their difference with an example.
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Appendix 2 – CTP
Laboratory safety (knowledge)
General laboratory safety
Health and safety
Personal protection for handling samples and equipment
Precautions in performing flammability tests
Measures in using large and heavy equipment in the laboratory
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Appendix 2 – CTP
Laboratory safety (knowledge)
Guidebooks from Labour Department of HKSAR
A brief guide to first aid
A brief guide to the Occupational Safety and Health Ordinance
A brief guide to the Occupational Safety and Health Regulation
Code of practice on safety management
Guidelines for good occupational hygiene practice in a workplace
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Appendix 2 – CTP
What are the factors affecting the selection of fire extinguisher?
Personnel must be trained in the use of extinguishers
Size and mass of the fire extinguisher
The minimum distance of travel
Environment for installing fire extinguisher
(A) (a), (b) and (c)
(B) (a), (b) and (d)
(C) (a), (c) and (d)
(D) (b), (c) and (d)
Appendix 2 (CTP)
Prevention of Bribery Ordinance, Cap. 201
Corruption
Advantages
Improper influence
Confidentiality and proprietary right
CSTP01 “Regulations – Certification Scheme of Testing Personnel”
Code of ethics in general
Code of ethics in relation to employer
Code of ethics in relation to public
Obligation of Certified Testing Personnel
Use of Certification symbol and claim of certification status51
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Appendix 2 - CTP
According to the Prevention of Bribery Ordinance, name 2 things that are considered as advantages.
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Appendix 2 – CTP
Estimation of Measurement Uncertainty
Estimation of measurement uncertainty
Approaches for estimation of measurement uncertainty e.g. ISO GUM, EURACHEM
Factors affecting measurement uncertainty
Reporting of uncertainty and compliance
Verification system of color fastness and care performance tests and uncertainty in relation to such tests
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Appendix 2 – CTP
Define experimental standard deviation of mean and what is the related standard uncertainty?
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Appendix 2 – CTP
Interpretation of results and reporting requirements (detailed knowledge)
Repeatability
Number of significant figures
Reporting format as stated in test standard
Deviations from test standards
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Appendix 2 – CTP
Requirements of the following general equipment calibration:
Length measurement devices
Temperature and humidity measuring devices
Equipment of any two sub-categories as specified in Appendix 6
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Appendix 2 – CTP
Basic laboratory techniques and principles
Importance of sample conditioning
How water regain affect the result
Terms used for textiles and garments
How the construction of fabric affecting the results
Types of dyes and ease of fastness of different color dyes (knowledge)
Types of fabric commonly used for different garments and their properties
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Appendix 2 – CTP
Detailed knowledge of principles, limitations and requirements of any two of the sub-categories as given Appendix 5.
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Appendix 2 – CTP
Please state the test principle of Tear strength (Elmendorf Tear). What are the most common methods for tear strength? Please state the method applications.
END OF SESSION
Thank you
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