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33/57 cofrac
CSTB Ie futur en construction TEST REPORT N° AC14-26051052/7 ~~
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SOUND ABSORPTION COEFFICIENT as OF SUSPENDED WALL PANELS
REQUESTER, MANUFACTURER SAINT GOBAIN ECOPHON
NAME Akusto Wall C/Texona 40 mm
FITNESS FOR PURPOSE Unchecked
=.:': ESSAIS
Test 8 Date 01/10/14
AA45 Station ALPHA
STANDARDS EN ISO 354, EN ISO 11654, prEN 16487
CONFIGURATION 50 mm overall depth of construction
MAIN CHARACTERISTICS MEASUREMENT CONDITIONS
Dimensions in mm : 3000 x 3600 Empty room: Room with sample: Area in m2 : 10.8 Thickness in mm : 40 Mass per unit area in kg/m 2: 4.2 Mounting type : E-50
RESULTS
1,2
' '':--1,0
0,8 - : - ~ -I~- - - -:- - :- -
0,6
- ~ -/:- - -: - -: - - - -:- - :- -I I I I I I
I I I I I
0,4 _ /~ _ ~ _ I ' ,
0,2 ,/
0,0 125 250 500 1k
Temperature: 21.0 o C Relative humidity: 67%
f 100 125 100 200
-~- ~----
250 ":' , 315
400 _ 1 _ 1 _ _ J _ _I _ _ _ _ &Xl
6:D 00)
1<XXJ 1250
-r-I- --1--1-- --
1a:xl 2(0)
2500 4k 2k 3100
4(0) fen/in Hz 0000
Hz
Temperature:21.0 °C Relative humidity: 67%
as 0,12 0,22 0,41 0,63 0,82 0,90 0,98 0,98 0,99 1,01 1,00 0,99 1,01 1,02 1,01 1,05 1,05 1,04
Uw = 1,00 classement I class: A
It is strongly recommended to use this single number rating in combination with the complete sound absorption coefficient curve.
Tramecofrac.dot, rev 11 du 12/02/14 R14-26051052-7.doc
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