illbruck illsonic waterproof PE foam resonator panel

illsonic waterproof Resonator-Struktur

PTB reference data

Original description

Material properties

Manufacturer: illbruck GmbH

Thickness: 55 mm

Wall distance: 50 mm

Surface: closed-cell with resonator structure

Application: hygiene area

ISO 354 – reverberation chamber

αw

0.38

αp nach ISO 11654

125 Hz

0.10

250 Hz

0.30

500 Hz

0.40

1000 Hz

0.35

2000 Hz

0.85

4000 Hz

0.30

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Method (354): Measured