WoodHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: SOUNDBOARD3, C: Walls, D: 70
Walls, 70 mm "Soundboard" (pressed wood curls with air gaps)
PTB reference data
Original description
Walls, 70 mm "Soundboard" (pressed wood curls with air gaps)
Material properties
Thickness: 70 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.45
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.20 | 0.40 | 0.65 | 0.50 | 0.80 |
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Method (354): Measured