WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a3.1-3
Cement-bonded wood wool lightweight panel
PTB reference data
Original description
Cement-bonded wood wool lightweight panel
Material properties
Thickness: 50 mm
Surface weight: 19.5 kg/m²
Flow resistance: 0.24 kPa·s/m²
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.48
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.20 | 0.45 | 0.70 | 0.60 | 0.80 |
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Method (354): Measured