WoodBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktdatenblatt des Herstellers
Deutsche Heraklith Herakustik F wood wool acoustic panel
Herakustik F
PTB reference data
Original description
Deutsche Heraklith Herakustik F wood wool acoustic panel
Material properties
Manufacturer: Deutsche Heraklith GmbH
Thickness: 25 mm, 35 mm, 50 mm
Wall distance: 0 mm, 30 mm, 40 mm, 50 mm, 80 mm, 200 mm, 220 mm, 270 mm, 290 mm
Backing: 30 mm Heralan, 40 mm Heraflax-SAP, 80 mm Heralan
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 15 variants
αw
0.91
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.85 | 0.95 | 0.85 | 0.85 | 1.00 | 0.90 |
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| Compare | Value | |||
|---|---|---|---|---|
| 50 mm | 20,5 kg / m² | 80 mm Abstand / 80 mm Heralan | αw0.91 | |
| 35 mm | 14,5 kg / m² | 290 mm Abstand / 40 mm Heraflax-SAP | αw0.83 | |
| 25 mm | 12 kg / m² | 270 mm Abstand / 40 mm Heraflax-SAP | αw0.77 | |
| 35 mm | 14,5 kg / m² | 220 mm Abstand / 40 mm Heraflax-SAP | αw0.76 | |
| 35 mm | 14,5 kg / m² | 40 mm Abstand / 40 mm Heraflax-SAP | αw0.73 | |
| 25 mm | 12 kg / m² | 40 mm Abstand / 40 mm Heraflax-SAP | αw0.70 | |
| 25 mm | 12 kg / m² | 30 mm Abstand / 30 mm Heralan | αw0.65 | |
| 50 mm | 20,5 kg / m² | 200 mm Abstand | αw0.65 | |
| 35 mm | 14,5 kg / m² | 200 mm | αw0.60 | |
| 50 mm | 20,5 kg / m² | without Abstand | αw0.59 | |
| 25 mm | 12 kg / m² | 30 mm | αw0.52 | |
| 35 mm | 14,5 kg / m² | 50 mm | αw0.50 | |
| 25 mm | 12 kg / m² | 200 mm | αw0.48 | |
| 35 mm | 14,5 kg / m² | without Abstand | αw0.47 | |
| 25 mm | 12 kg / m² | without Abstand | αw0.43 |
Dimensions: 600 / 1200 x 600, 625 / 1250 x 625, 1000 x 500 mm
Application: Decken- and Wandverkleidung
