GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Odeon (Index 109)
Plasterboard 9.5 mm with 6 mm holes in square pattern with approx. 11% perforation. 100 mm from wall with 25 mm mineral wool at front of cavity
PTB reference data
Original description
Plasterboard 9.5 mm with 6 mm holes in square pattern with approx. 11% perforation. 100 mm from wall with 25 mm mineral wool at front of cavity
Material properties
Thickness: 9.5 mm
Wall distance: 100 mm
Perforation: 11%
Hole size: 6 mm
Backing: 25 mm mineral wool
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.32
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.15 | 0.15 | 0.15 | 0.10 |
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Method (354): Measured