WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktblatt des Herstellers
Topakustik Fineline wood fiber absorber with mineral wool
Topakustik – Fineline
PTB reference data
Original description
Topakustik Fineline wood fiber absorber with mineral wool
Material properties
Manufacturer: n'H Akustik + Design AG
Wall distance: 200 mm
Perforation: 8.4 %
Backing: 30 mm mineral wool 60 kg/m³
Surface: acoustic non-woven 60 g/m² faced
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.71
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.70 | 0.85 | 0.85 | 0.80 | 0.80 |
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Method (354): Measured
