Perforated drywall with acoustic plaster / 6 cm air cavity

PTB reference data

Original description

Material properties

Wall distance: 6 cm

ISO 354 – reverberation chamber

αw

0.62

αp nach ISO 11654

125 Hz

0.45

250 Hz

0.85

500 Hz

0.75

1000 Hz

0.45

2000 Hz

0.65

4000 Hz

0.50

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Method (354): Measured