'1D 0 >w0 � w � €D I 1002 1S0EC 17025 nnſtn" -- - --- -- - ---- --- - issued by an Accrediled Laboratory Handled by, departmenl Joachim Stadig Energy Technology +46 33 16 54 29, joachim.stad[email protected]Revision Information Date Reference 2005-06-14 P501877 Rev.I SalesHeli Advisors Oy Opinkuja 2 02100 Espoo Finland Page 1 (5) This document, P501877 Rev. I, replaces document P501877 om 2015-12-17. Two changes are made: l) The cause r the revision number increment is that the page header address inrmation has been updated with the new holder of the document (m1erly Ecophon AB, Nils-Åke Andersson, Box 500, 260 61 HYLLINGE), and 2) the document is now signed by a new Tecical manager (rmerly Hans Jonasson) and Technical Officer (rmerly Joachim Stadig) Determination of sound absorption coefficients in a reverberation room according to ISO 354, EN 20354 and EN ISO 11654 (3 appendices) Client Ecophon AB Test objects Sound absorbing panels delivered by Ecophon AB Arriva) oftest objects March 21, 2005 Date oftest March 23-24, 2005 Results The sound absorption coefficient (a5) and the practical sound absorption coefficient (a p ) are given in appendix 1-13. The weighted sound absorption coefficient (a w ) and the sound absorption classes have been calculated according to EN ISO 11654 and the results are given in tabte 1-2 and in appendix 1-13. The results are valid r the tested objects only. SP Swedish National Testing and Research lnstitute Postal address SP Box 857 SE-501 15 Borås SWEDEN Office lation Våsteråsen Brinellgatan 4 Borås Phone I Fax I E-mail +46 3316 50 00 +46 33 1355 02 [email protected]Laboratories are accredited by the Swedish Board for Accreditation and Conformity Assessment (SWEDAC) under the terms of Swedish legislation. This report may not be reproduced other !han in full, except with the prior written approval of the issuing laboratory.
SalesHeli Advisors OyOpinkuja 202100 Espoo Finland
Page
1 (5)
This document, P501877 Rev. I, replaces document P501877 from 2015-12-17. Two changes are made: l) The cause for the revision number increment is that the page header address informationhas been updated with the new holder of the document (fom1erly Ecophon AB, Nils-ÅkeAndersson, Box 500, 260 61 HYLLINGE), and2) the document is now signed by a new Technical manager (formerly Hans Jonasson) andTechnical Officer (formerly Joachim Stadig)
Determination of sound absorption coefficients in a reverberation
room according to ISO 354, EN 20354 and EN ISO 11654 (3 appendices)
Client
Ecophon AB
Test objects
Sound absorbing panels delivered by Ecophon AB
Arriva) oftest objects
March 21, 2005
Date oftest
March 23-24, 2005
Results
The sound absorption coefficient ( a5) and the practical sound absorption coefficient ( ap) are
given in appendix 1-13. The weighted sound absorption coefficient (aw) and the sound
absorption classes have been calculated according to EN ISO 11654 and the results are given in tabte 1-2 and in appendix 1-13.
The results are valid for the tested objects only.
SP Swedish National Testing and Research lnstitute
Laboratories are accredited by the Swedish Board for Accreditation and Conformity Assessment (SWEDAC) under the terms of Swedish legislation. This report may not be reproduced other !han in full, except with the prior written approval of the issuing laboratory.
N 0 "' Q.
Tabte 1
Test object
INVISIBLE A
Thickness: 42 mm Mounting depth: 42 mm Mass per square metre: 2, 70 kg
INVISIBLE A
Thickness: 22 mm Mounting depth: 22 mm Mass per square metre: 1,59 kg
INVISIBLE C
Thickness: 22 mm Mounting depth: 22 mm Mass per square metre: 2,54 kg
INVISIBLE Plaster
Thickness: 3 mm (sprayed on 13 mm thick plasterboard) Mounting depth: 16 mm Mass per square metre: 9,53 kg
INVISIBLE C
Thickness: 22 mm Mounting depth: 100 mm Mass per square metre: 2,54 kg
INVISIBLE A
Thickness: 22 mm Mounting depth: 100 mm Mass per square metre: 1,59 kg
INVISIBLE A
Thickness: 42 mm Mounting depth: 100 mm Mass per square metre: 2, 70 kg
INVISIBLE A
Thickness: 42 mm Mounting depth: 200 mm Mass per square metre: 2,70 kg
INVISIBLE Puts
Thickness: 3 mm (sprayed on 13 mm thick plasterboard) Mounting depth: 200 mm Mass per square metre: 9,53 kg
INVISIBLE C
Thickness: 22 mm Mounting depth: 200 mm Mass per square metre: 2,54 kg
Date Reference
2005-06-14 P501877 Rev.!
EN ISO 11654
Absorption aw
class
B 0,85
C 0,7(M)
C 0,7(H)
D 0,3(H)
B 0,85
A 0,9
B 0,85
B 0,85
E 0,25(H)
B 0,8
Page
2 (5)
Appendix
2
3
4
5
6
7
8
9
10
Date Reference Page
Dl: IHH�'!' ==== '='== =
2005-06-14 P501877 Rev.I 3 (5)
Tabte 2
Test object EN ISO 11654 Appendix
Absorption aw
class
B 0,85 11
INVISIBLE A
Thickness: 22 mm Mounting depth: 200 mm Mass per square metre: 1,59 kg
B 0,85 12
INVISIBLE A
Thickness: 22 mm Mounting depth: 50 mm Mass per square metre: 1,59 kg
A 0,9 13
INVISIBLE C
Thickness: 22 mm Mounting depth: 50 mm Mass per square metre: 2,54 kg
Measurement method
The measurements have been carried out according to SS-EN 20354:93 (ISO 354: 1985). 4 loudspeakers and 6 microphones have been used giving 24 different combinations. For empty room 3 decays have been used for averaging the time and for test objects 5 decays have been used, for each combination of loudspeaker and microphone.
The absorption coefficient as has been evaluated from:
a = s
where
V = s =
55.3 V ( 1 1 ) c · S T2 - Ti
Volurne of the reverberation room (m3)
Area of the test object (m2)
Speed of sound in air (m/s) 331 + 0.6t Temperature in the air (0C) Reverberation time of the room without test obj ect ( s) Reverberation time of the room with test object (s)
N 0 ro
e;
Date Reference
2005-06-14 P501877 Rev.I
Appendix 1
Page
I (2)
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 42 mm. Panel size: 1500 mm x 1000 mm. March 23, 2005 Mounting depth: Surface area: Room volume:
42 mm. 10,8 m
2•
200 m3.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 86/ 86 %. Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,85 according to
Measurement of sound absorption coefficient in a reverberation room
according to SS-EN 20354 (ISO 354).
Saint-Gobain Ecophon AB
Christer Persson INVISIBLE A Thickness: 42 mm.
Panel size: 1500 nun x 1000 mm.
March 23, 2005
Mounting depth: Surface area:
Room volume:
42 mm. 10,8 m2
. 200 m3 .
Temperature at measurement on object/in empty room: 20/ 20 °C.
Relative hurnidity at measurement on object/in empty room: 86/ 86 %.
Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Practical sound absorption coefficient
Frequency
(Hz)
63
125
250
500
1000
2000
4000
Fra:µrcy (�)
av
0,00
0,35
0,80
l,00
0,85
0,80
0,75
N 0 M
a..
Date Reference
2005-06-14 P501877 Rev. I
Appendix 2
Page
I (2)
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 22 mm. Panel size: 1500 mm x I 000 mm. March 23, 2005 Mounting depth: 22 mm.
Surface area: I 0,8 m2.
Room volume: 200 m3.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative hurnidity at measurement on object/in empty room: 86/ 86 %. Sound absorption class C according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,7(M) according to EN ISO 11654.
Measurement of sound absorption coefficient in a reverberation room
according to SS-EN 20354 (ISO 354).
Saint-Gobain Ecophon AB
Christer Persson
INVISIBLE A
Thickness: 22 mm.
Panel size: 1500 mm x 1000 mm.
March 23, 2005
Mounting depth: 22 mm.
10,8 m2•
200 m3.
Result
Surface area:
Room volume:
Temperature at measurement on object/in empty room: 20/ 20 °C.
Relative humidity at measurement on object/in empty room: 86186 %.
Sound absorption class C according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,7(M) according to
EN ISO 11654.
Practical sound absorption coefficient
Frequency
(Hz)
63
125 1,0 250
500
1000 0,8 2000
4000
0,6
0,4
0,2
63 125 1cm 4CXX)
Fra:µro; (�)
aP
0,00
0,10
0,40
0,80
0,95
0,90
0.80
N 0 M
e;
D I: l'HH! '!' ==== "='== =
Date Reference
2005-06-14 P501877 Rev. l
Appendix 3
Measurement of sound absorption coefficient
Page
1 (2)
Test
Client
Object
Date oftest Conditions
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE C Thickness: 22 mm. Panel size: 1500 mm x 1000 mm. March 23, 2005 Mounting depth: Surface area: Room volume:
22 mm. 10,8 nl. 200 m3
.
Result
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 86/ 86 %. Sound absorption class C according to EN ISO 11654. Weighted sound absorption coefficient O.w = 0,7(H) according to EN ISO 11654.
Sound absorption coefficient
Frequency
(Hz)
50
1,0 63
80
100
125
160
200
0,6 250
315
400
0,4 500
630
800
0,2 1000
1250
1600
2000
2500
ro 125 2Xl 315 fID OCD 12:D 2XlO 31B:l BXJJ 3150
4000
Fr�(Hz) 5000
a,
0,00 -0,01
0,02
0,02
0,07
0,15
0,24
0,35
0,54
0,75
0,83
0,89
0,90
0,92
0,94
0,95
0,93
0,90
0,87
0,86
0,85
Date Reference Page
2005-06-14 PSO 1877 Rev.I 2 (2)
Appendix 3
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE C Thickness: 22 mm. Panel size: 1500 mm x 1000 mm. March 23, 2005 Mounting depth: 22 mm. Smface area: 10,8 m2. Room volume: 200 m3. Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 86/ 86 %. Sound absorption class C according to EN ISO 11654. Weighted sound absorption coefficient aw = 0,7(H) according to EN ISO 11654.
Practical sound absorption coefficient Frequency
(Hz)
63 125
1,0 250
500
1000 0,8 2000
4000
0,6
0,4
0,2
63 125 1ax) 4CXX)
Fra:µn:,y (�)
Clp
0,00
0,10
0,40
0,85
0,90
0,90
0,85
N 0 "'
Q,
1u:i n,u,,.:::=:;:::
Date Reference
2005-06-14 P501877 Rev. l
Appendix 4
Page
1 (2)
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE Plaster Thickness: 3 mm (sprayed on 13 mm thick plasterboard) Panel size: 1200 mm x 1200 mm. March 23, 2005 Mounting depth: 16 mm. Surface area: 10,8 m2 . Room volume: 200 m3
.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 86 %. Sound absorption class D according to EN ISO 11654. Weighted sound absorption coefficient aw = 0,3(H) according to EN ISO 11654.
Sound absorption coefficient Frequency
1,2 ----------------------- (Hz)
50
63
1,0 80
100
125 0,8 160
200
250 0,6 315
400
0,4 500
630
800
1000 0,2 1250
1600
0,0 b..,_--====:::::::......___________ ..J 2000
2500
125 an 315 fJJJ ro:i 125::J axD 315'.) '3XJJ 3150
4000
5000 F�(Hz)
a,
0,02
-0,02
0,01
0,Q2
0,o3
0,o3
0,04
0,o7
0,13
0,22
0,26
0,29
0,31
0,34
0,37
0,41
0,45
0,49
0,52
0,53
0,59
Date Reference Page
2005-06-14 P501877 Rev. l 2 (2)
Appendix 4
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE Plaster Thickness: 3 mm (sprayed on 13 mm thick plasterboard) Panel size: 1200 mm x 1200 mm. March 23, 2005 Mounting depth:
Surface area: Room volume:
16 mm. 10,8 m
2. 200 m3.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 86 %. Sound absorption class D according to EN ISO 11654.
Weighted sound absorption coefficient <Xw = 0,3(H) according to EN ISO 11654.
Practical sound absorption coefficient
Frequency
(Hz)
63
125
250
500
1000
2000
4000
Fraµn:,y (1-l?:)
aP
0,00
0,00
0,10
0,25
0,35
0,45
0,55
Dale Reference Page
2005-06-14 P50 I 877 Rev.1 1 (2)
Appendix 5
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Mounting depth:
Surface area: Room volume:
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE C Thickness: 22 mm. Panel size: 1500 mm x 1000 mm. March 23, 2005
100 mm. 10,8 m
2.
200 m3
.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 86 %. Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Ecophon AB Christer Persson INVISIBLE C Thickness: 22 mm. Panel size: 1500 mm x March 23, 2005 Mounting depth: Surface area: Room volume:
1000 nun.
100 mm. 10,8 m2. 200 111
3•
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 86 %. Sound absorption class B according to EN ISO 11654. Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Practical sound absorption coefficient Frequency
(Hz)
63
125
1,0 250
500
1000
0,8 2000
4000
0,6
0,4
0,2
o3 125 25) 1cm
Fre::µ:rcy (�)
aP
0,05
0,30
0,75
0,85
0,85
0,85
0.85
Date Reference Page
2005-06-14 P501877 Rev.I l (2)
Appendix 6
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Mounting depth: Surface area: Room volume:
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 22 mm. Panel size: 1200 mm x 1200 mm. March 23, 2005
100 mm. 10,8 m2. 200 m3 •
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 86/ 85 %. Sound absorption class A according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,9 according to EN ISO l 1654.
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 22 mm. Panel size: 1200 mm x 1200 mm. March 23, 2005
100 mm. 10,8 m2. 200 m3
.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 86/ 85 %. Sound absorption class A according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,9 according to EN ISO 11654.
Practical sound absorption coefficient
Frequency aP (Hz)
63 0,05
125 0,25
250 0,75
500 0,95
1000 0,90
2000 0,80 4000 0.80
Fr�(�)
Date Reference Page
2005-06-14 P501877 Rev. I I (2)
Appendix 7
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room
according to SS-EN 20354 (ISO 354).
Saint-Gobain Ecophon AB
Christer Persson
INVISIBLE A
Thickness: 42 mm.
Panel size: I 000 mm x 1500 mm.
March 24, 2005 Mounting depth: 100 mm. Surface area: I 0,8 m
2.
Room volume: 200 m3
.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 87/ 85 %.
Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient Clw = 0,85 according to
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson
. INVISIBLE A Thickness: 42 mm. Panel size: 1000 mm x March 24, 2005 Mounting depth:
1500 mm.
100 mm. 10,8 m2
•
200 m3.
Surface area: Room volume:
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 87/ 85 %. Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Practical sound absorption coefficient
Frequency
(Hz)
63
1,0 125
250
500
0,8 1000
2000
4000
0,6
0,4
0,2
63 125 2f;() 1cm 4cm
Fra:µrcy (Hz:)
aP
0,05 0,45
0,85
0,95
0,85
0,80
0,75
Date Reference Page
2005-06-14 P501877 Rev.I 1 (2)
Appendix 8
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest
Conditions
Measurement of sound absorption coefficient in a reverberation room
according to SS-EN 20354 (ISO 354).
Saint-Gobain Ecophon AB
Christer Persson
INVISIBLE A
Thickness: 42 mm.
Panel size: 1000 mm x 1500 mm.
March 24, 2005
Mounting depth:
Surface area:
Room volume:
200 mm.
10,8 m2.
200 m3
.
Result
Temperature at measurement on object/in empty room: 20/ 20 °C.
Relative humidity at measurement on object/in empty room: 88/ 85 %.
Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient CXw = 0,85 according to
EN ISO 11654.
Sound absorption coefficient
1,2 ------------------------Frequency
a, (Hz)
50 0,06
1,0 63 0,16
80 0,31
100 0,47
0,8 125 0,45
160 0,74
200 0,73
0,6 250 0,68
315 0,78
400 0,86
0,4 500 0,88
630 0,80
800 0,86
0,2 1000 0,85
1250 0,85
1600 0,83
0,0 -----------------------2000 0,81
2500 0,78
80 125 m 315 EffJ 8XJ 1250 am 3150 '3XfJ 3150 0,76
4000 0,74
Fre:µn:y (Hz) 5000 0,74
N 0 M
e;
Dl:'IHH�'!' ==== �== =
Date
2005-06-14 Reference Page
P 501877 Rev. l 2 (2)
Appendix 8
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Mounting depth:
Measurement of sound absorption coefficient in a reverberation room
according to SS-EN 20354 (ISO 354 ).
Saint -Gobain Ecophon AB
Christer Persson
INVISIBLE A
Thickness: 42 mm.
Panel size: 1000 mm x 1500mm. March 24 , 2005
200 mm.
10,8 m2
.
200 m3.
Surface area: Room volume:
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object /in empty room: 88/ 85 %. Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient Ct.w = 0,85 according to EN ISO 11654.
Practical sound absorption coefficient
Frequency
(Hz)
63
125
250
500
1000
2000
4000
Fre::µrcy (re)
aP
0,20
0,55
0,75
0,85
0,85
0,80
0,75
Date Reference Page
2005-06-14 P501877 Rev. I I (2)
Appendix 9
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE Plaster Thickness: 3 mm (sprayed on 13 mm thick plasterboard) Panel size: 1200 mm x 1200 mm. March 24, 2005 Mounting depth: 200 mm.
Surface area: 10,8 m.2 Room volume: 200 m3
.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 87/ 85 %. Sound absorption class E according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,25(H) according to EN ISO 11654.
Sound absorption coefficient
Frequency
(Hz)
50
1,0 63
80
100
0,8 125
160
200
0,6 250
315
400
0,4 500
630
800
0,2 1000
1250
1600
2000
2500
00 125 2Xl 315 Ero 000 12:D a::m 31W EfXJJ 3150
4000
FrEq..B1Cy (Hz) 5000
a,
0,09
0,13
0,23
0,28
0,22
0,21
0,19
0,15
0,14
0,13
0,14
0,19
0,21
0,27
0,32
0,41
0,46
0,52
0,54
0,57
0,61
N
0 M
0.. V,
Date Reference Page
2005-06-14 P501877 Rev. I 2 (2)
Appendix 9
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE Plaster Thickness: 3 mm (sprayed on 13 mm thick plasterboard) Panel size: 1200 mm x 1200 mm. March 24, 2005 Mounting depth:
Surface area: Room volume:
200 mm. 10,8 m2. 200 m3
.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 87/ 85 %.
Sound absorption class E according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,25(H) according to EN ISO 11654.
Practical sound absorption coefficient
Frequency
(Hz)
63 125
1,0 250 500
1000 0,8 2000
4000
0,6
0,4
0,2
63 125 1cm 4CXX)
FrEQ.a'cy (H1'.)
aP
0,15 0,25 0,15
0,15
0,25 0,45 0,55
N 0
e;
Date Reference Page
2005-06-14 P50 I 877 Rev. I 1 (2)
Appendix 10
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE C Thickness: 22 mm. Panel size: 1200 mm x March 24, 2005 Mounting depth:
1200 mm.
200 mm. 10,8 nl. 200 m3 .
Surface area: Room volume: Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 85 %. Sound absorption class B according to EN ISO 11654. Weighted sound absorption coefficient aw = 0,8 according to EN ISO 11654.
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 22 mm. Panel size: 1000 mm x March 24, 2005 Mounting depth: Surface area: Room volume:
1500 mm.
200 mm. 10,8 m2.200 m3 .
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative hurnidity at measurement on object/in empty room: 87/ 85 %. Sound absorption class B according to EN ISO 11654. Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Practical sound absorption coefficient Frequency
1,2 -------------------- (Hz)
63
1,0 125
250
500
0,8 1000
2000
4000
0,6
0,4
0,2
0,0 ..._ ___________________ _,
63 125 1cm
Fra:µrcf (Hi'.)
aP
0,10
0,50
0,80
0,85
0,80
0,85
0,80
N 0 M
Il. V,
ru:nnn" ====�===
Date
2005-06-14
Measurement of sound absorption coefficient
Reference Page
P501877 Rev. I 1 (2)
Appendix 12
Test
Client
Object
Date oftest
Conditions Mounting depth:
Measurement of sound absorption coefficient in a reverberation room
according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 22 mm. Panel size: 1000 mm x 1500 mm. March 24, 2005
50 mm. 10,8ni
2.
200 m3
.
Surface area: Room volume:
Result
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 85 %.
Sound absorption class B according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE A Thickness: 22 mm. Panel size: 1000 mm x March 24, 2005 Mounting depth: Surface area: Room volume:
1500 mm.
50 mm. 10,8 m2
.
200 m3. Temperature at measurement on object/in empty room: 20/ 20 °C. Relative humidity at measurement on object/in empty room: 88/ 85 %. Sound absorption class B according to EN ISO 11654. Weighted sound absorption coefficient aw = 0,85 according to EN ISO 11654.
Practical sound absorption coefficient Frequency
(Hz)
63
1,0 125
250
500
0,8 1000
2000
4000
0,6
0,4
0,2
0,0 ic;.. ___________________ __
63 125 1CXX) 4CXX)
Fi"Eq.ff'Cf (�)
aP
0,00
0,20
0,60
0,95
0,95
0,85
0,80
N 0
Bi
Date Reference Page
2005-06-14 P501877 Rev.I I (2)
Appendix 13
Measurement of sound absorption coefficient
Test
Client
Object
Date oftest Conditions
Result
Measurement of sound absorption coefficient in a reverberation room according to SS-EN 20354 (ISO 354). Saint-Gobain Ecophon AB Christer Persson INVISIBLE C Thickness: 22 mm. Panel size: 1000 mm x 1500 mm. March 24, 2005 Mounting depth: Surface area: Room volume:
50 mm. 10,8 m2
. 200 m3.
Temperature at measurement on object/in empty room: 20/ 20 °C. Relative hurnidity at measurement on object/in empty room: 88/ 85 %. Sound absorption class A according to EN ISO 11654.
Weighted sound absorption coefficient aw = 0,9 according to EN ISO 11654.
