Slotted gypsum board cassette, 625 x 625 mm, 9.5 mm thick

PTB reference data

Original description

Material properties

Thickness: 9.5 mm

Wall distance: 30 mm

Dimensions: 625 × 625 mm

Perforation: slotted

Hole size: 2.3 mm

ISO 354 – reverberation chamber

αw

0.36

αp nach ISO 11654

125 Hz

0.10

250 Hz

0.30

500 Hz

0.85

1000 Hz

0.60

2000 Hz

0.20

4000 Hz

0.10

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Method (354): Measured