Fibertex Nonwovens A/S Laboratory measurement of sound absorption Report no. P2.041.12

Page 9 of 11 pages

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Measurement result of sound absorption coefficient

Client: AKUART Measurement: A4

Rådmandsgade 55 Date of meas.: 28-09-2012

2200 København N 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 absorp-tion 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 Sound absorption class: A

Temperatu-

re Relative humidity

Empty room (T1)

19˚C 59%

Measurement A1 (T2)

19˚C 60%

APPENDIX D