GypsumLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968, c1-4
Gypsum board on battens with mineral fiber backing
PTB reference data
Original description
Gypsum board on battens with mineral fiber backing
Material properties
Thickness: 9.5 mm
Wall distance: 400 mm
Dimensions: 1500 × 1250 mm
Surface weight: 8.3 kg/m²
Backing: mineral fiber mat backing
Mounting: on 24/48 mm battens, 420 mm grid
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 | 0.20 | 0.15 | 0.10 | 0.05 | 0.05 | 0.10 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured