Ventilation grille (approx. per sq. m.)

PTB reference data

Original description

Material properties

No further information available.

ISO 354 – reverberation chamber

αw

0.60

αp nach ISO 11654

125 Hz

0.20

250 Hz

0.20

500 Hz

0.20

1000 Hz

0.20

2000 Hz

0.20

4000 Hz

0.20

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Method (354): Measured