WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 88
Heraklith Herakustik HAK F wood wool fiber absorber
Herakustik, HAK F
PTB reference data
Original description
Heraklith Herakustik HAK F wood wool fiber absorber
Material properties
Manufacturer: Deutsche Heraklith GmbH
Thickness: 25 mm, 35 mm
Wall distance: 250 mm, 25 mm, 30 mm, 0 mm, 290 mm, 50 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 7 variants
αw
0.82
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.80 | 1.00 | 0.90 | 0.85 | 1.00 |
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| Compare | Value | |||
|---|---|---|---|---|
| 35 mm | 15,5 kg / m² | 290 mm with 40 mm Mineralwollhinterfütterung | αw0.82 | |
| 25 mm | 12 kg / m² | 250 mm with 45 mm Mineralwollhinterfütterung | αw0.79 | |
| 25 mm | 12 kg / m² | 25 mm with 25 mm Mineralwollhinterfütterung | αw0.60 | |
| 25 mm | 12 kg / m² | 30 mm | αw0.49 | |
| 35 mm | 15,5 kg / m² | 50 mm | αw0.49 | |
| 35 mm | 15,5 kg / m² | 0 | αw0.46 | |
| 25 mm | 12 kg / m² | 0 | αw0.39 |
Dimensions: 2000, 1000, 500 mm x 500 mm