GypsumLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Odeon (Index 700 )
Drywall on frame, 9.5 mm boards, 100 mm empty cavity
PTB reference data
Original description
Drywall on frame, 9.5 mm boards, 100 mm empty cavity
Material properties
Thickness: 9.5 mm
Wall distance: 100 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.06
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 |
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Method (354): Measured