Perforated sheet corrugated to key pattern (CoopSe)

PTB reference data

Original description

Material properties

Surface: perforated, corrugated

ISO 354 – reverberation chamber

αw

0.73

αp nach ISO 11654

125 Hz

0.75

250 Hz

0.90

500 Hz

0.65

1000 Hz

0.80

2000 Hz

0.75

4000 Hz

0.50

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Method (354): Measured