GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: J.Meyer, Kirchenakustik, Verlag E.Bochinsky
Sound-absorbing plaster, 20 mm thickness
PTB reference data
Original description
Sound-absorbing plaster, 20 mm thickness
Material properties
Thickness: 20 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.53
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.25 | 0.50 | 0.75 | 0.80 | 0.80 |
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Method (354): Measured