Unperforated gypsum board with 5 cm air cavity

PTB reference data

Original description

Material properties

Wall distance: 5 cm

ISO 354 – reverberation chamber

αw

0.12

αp nach ISO 11654

125 Hz

0.30

250 Hz

0.10

500 Hz

0.10

1000 Hz

0.05

2000 Hz

0.05

4000 Hz

0.05

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Method (354): Measured