Wood panels, 6% perforation ratio / 5 cm air cavity

PTB reference data

Original description

Material properties

Wall distance: 5 cm

Perforation: 6 %

ISO 354 – reverberation chamber

αw

0.45

αp nach ISO 11654

125 Hz

0.35

250 Hz

0.80

500 Hz

0.65

1000 Hz

0.45

2000 Hz

0.25

4000 Hz

0.20

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Method (354): Measured