Perforated brick 12x25x25, 60% open area, whitewashed

PTB reference data

Original description

Material properties

Perforation: 60%

Surface: whitewashed

ISO 354 – reverberation chamber

αw

0.03

αp nach ISO 11654

125 Hz

0.00

250 Hz

0.00

500 Hz

0.05

1000 Hz

0.05

2000 Hz

0.05

4000 Hz

0.05

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Method (354): Measured