Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 84
Original description
Deweton acoustic panel Type D (Helmholtz resonator), 4 mm slots
ISO 354 – reverberation chamber· 3 variants
αp per ISO 11654
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| Compare | Value |
|---|---|
| αw0.47 | |
| αw0.47 | |
| αw0.34 |
Weight / density: 11 kg / m²
Dimensions: width 604 mm, Längen: 604 mm, 1212 mm, 1820 mm, 2500 mm, 3000 mm.
Application: Wand- and Deckenplatte
Distance: 30 mm
