WoodHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: SOUNDBOARD4, C: Walls, D: 100
Value from the PTB table, not verified
Walls, 100 mm "Soundboard" (pressed wood curls with air gaps)
PTB reference data
Original description
Walls, 100 mm "Soundboard" (pressed wood curls with air gaps)
Material properties
Thickness: 100 mm
Application: wall
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.50
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.25 | 0.50 | 0.50 | 0.70 | 0.80 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| Measurement 1 | 0.50 | 0.13 | 0.25 | 0.51 | 0.52 | 0.68 | 0.82 |
Measured values as a table (1 measurement)
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