Wood boarding with open joints, 5 cm air cavity

PTB reference data

Original description

Material properties

Wall distance: 50 mm

ISO 354 – reverberation chamber

αw

0.30

αp nach ISO 11654

125 Hz

0.25

250 Hz

0.80

500 Hz

0.35

1000 Hz

0.20

2000 Hz

0.10

4000 Hz

0.10

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Method (354): Measured