Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 90
Travertin rustica, TRAV R
Original description
Deutsche Heraklith Travertin rustica wood wool fiber absorber
ISO 354 – reverberation chamber· 3 variants
αp per ISO 11654
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| Compare | Value | |
|---|---|---|
| 250 mm with 45 mm Mineralwollhinterfütterung | αw0.51 | |
| 30 mm | αw0.43 | |
| 0 | αw0.39 |
Weight / density: 15 kg / m²
Dimensions: 1000, 500 mm x 500 mm
