Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 109
atona sound-absorbing panel
Original description
Grohmann atona polystyrene sound-absorbing panel
ISO 354 – reverberation chamber· 2 variants
αp per ISO 11654
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| Compare | Value | |
|---|---|---|
| 20 mm | αw0.57 | |
| 10 mm | αw0.39 |
Dimensions: 496 x 496 mm
Distance: 40 mm
