GypsumLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Odeon (Index 701)
Drywall on frame, 9.5 mm boards, 100 mm cavity filled with mineral wool
PTB reference data
Original description
Drywall on frame, 9.5 mm boards, 100 mm cavity filled with mineral wool
Material properties
Thickness: 9.5 mm
Wall distance: 100 mm
Backing: mineral wool
Mounting: on frame
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.11
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.05 | 0.05 | 0.00 | 0.00 | 0.00 |
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Method (354): Measured