Fibertex Nonwovens A/S Laboratory measurement of sound absorption Report no. P2.041.12
Page 9 of 11 pages
APPENDIX D
Measurement result of sound absorption coefficient Client:
AKUART Rådmandsgade 55 2200 København N
Measurement: A4 Date of meas.: 28-09-2012 Performed by: SRA
Object description AKUART 40 mm glass wool panels with print, mounted in 58 mm frame, leaving approx. 10 mm of air space behind panel. Periphery enclosed with tape. Measurement method The measurements were performed according to DS/EN ISO 354, and the weighted sound absorption coefficient as well as the sound absorption class are determined according to DS/EN ISO 11654 Comments to the measurement
Weighted sound abs. coefficient: w = 0,95
Temperature
Relative humidity
Empty room (T1)
19˚C
59%
Measurement A1 (T2)
19˚C
60%
r:\projects\glo\35\35386501\06_output\p2.041.12.docx
Sound absorption class: A
1,0
0,8
0,6
0,4
0,2
0,0
125
250
500
1000
2000
400 0
1,0
0,8
0,6
0,4
0,2
0,0
125
250
500
1000
2000
400 0
1,0
0,8
0,6
0,4
0,2
0,0
125
250
500
1000
2000
400 0