Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 172
illsilent – S 20 Z, S 20 SEF, S 28 SV/SEF
Original description
illsilent flexible polyurethane foam, pyramid profile
ISO 354 – reverberation chamber· 2 variants
αp per ISO 11654
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| Compare | Value | |
|---|---|---|
| 100 mm | αw0.76 | |
| 70 mm | αw0.69 |
Weight / density: ca. 20 - 28 kg / m³
Dimensions: 1000 x 1000 mm
Distance: 0
