Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 199
Perlgips perforated panel – straight perforation 8/18
Original description
Knauf Perlgips perforated panel, Helmholtz absorber
ISO 354 – reverberation chamber· 2 variants
αp per ISO 11654
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| Compare | Value | |
|---|---|---|
| 500 mm | αw0.67 | |
| 53 mm | αw0.54 |
Weight / density: ca. 7 kg / m²
Dimensions: 1250 x 2500 mm
