Aluminum-faced mineral fiber panel with bitumen bond

PTB reference data

Original description

Material properties

Thickness: 50 mm

Wall distance: 230 mm

ISO 354 – reverberation chamber

αw

0.47

αp nach ISO 11654

125 Hz

0.60

250 Hz

0.70

500 Hz

0.75

1000 Hz

0.50

2000 Hz

0.30

4000 Hz

0.20

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Method (354): Measured