Kaefer VPR-Modul B1, fiber-free panel resonator with steel facing

VPR-Modul B1

PTB reference data

Original description

Material properties

Manufacturer: Kaefer Isoliertechnik

Thickness: 100 mm

Surface: 1 mm steel

ISO 354 – reverberation chamber

αw

0.69

αp nach ISO 11654

125 Hz

0.90

250 Hz

0.80

500 Hz

0.80

1000 Hz

0.55

2000 Hz

0.40

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Method (354): Measured