WoodHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: SOUNDBOARD6, C: Ceilings, D: 50
Ceilings, 50 mm "Soundboard" (pressed wood curls with air gaps) on 25 mm studs
PTB reference data
Original description
Ceilings, 50 mm "Soundboard" (pressed wood curls with air gaps) on 25 mm studs
Material properties
Thickness: 50 mm
Wall distance: 25 mm
Application: ceiling
Mounting: on batten construction
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.37
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.15 | 0.25 | 0.55 | 0.60 | 0.60 |
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Method (354): Measured