Davidson thickness=20 mm (Gal. Ferr.)

PTB reference data

Original description

Material properties

Thickness:

20 mm

ISO 354 – reverberation chamber

αw

0.59

αp nach ISO 11654

125 Hz

0.10

250 Hz

0.15

500 Hz

0.60

1000 Hz

0.95

2000 Hz

0.90

4000 Hz

0.85

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Method (354): Measured