WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 a 4-8
Lightweight chipboard, porous hard foil on both sides, 35 mm
PTB reference data
Original description
Lightweight chipboard, porous hard foil on both sides, 35 mm
Material properties
Thickness: 35 mm
Wall distance: 250 mm
Surface weight: 9.5 kg/m²
Surface: porous hard foil
Flow resistance: 102 Rayl
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.78
Frequency values
αp nach ISO 11654
| f (Hz) | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|
| αp | 0.85 | 0.70 | 0.80 | 0.80 | 0.75 |
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Method (354): Measured