Perforated gypsum board with 6% perforation ratio

PTB reference data

Original description

Material properties

Thickness: 12.5 mm

Wall distance: 30 mm

Perforation: 6%

Hole size: 8 mm, 15 mm, 20 mm

Mounting: batten construction

ISO 354 – reverberation chamber

αw

0.13

αp nach ISO 11654

125 Hz

0.05

250 Hz

0.10

500 Hz

0.35

1000 Hz

0.20

2000 Hz

0.05

4000 Hz

0.05

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Method (354): Measured