Kaefer VPR-Modul B2 (fiber-free compound panel resonator)

VPR-Modul B2

PTB reference data

Original description

Material properties

Manufacturer: Kaefer Isoliertechnik

Thickness: 100 mm

Surface: 2.5 mm steel front panel

ISO 354 – reverberation chamber

αw

0.74

αp nach ISO 11654

125 Hz

0.95

250 Hz

0.85

500 Hz

0.80

1000 Hz

0.60

2000 Hz

0.45

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Method (354): Measured