GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe www.knauf.de
Knauf Akustikdesignplatte D 127, perforated gypsum board
Akustikdesignplatte – D 127 perforation 8/12/50R
PTB reference data
Original description
Knauf Akustikdesignplatte D 127, perforated gypsum board
Material properties
Manufacturer: Knauf Hauptverwaltung Iphofen
Thickness: 12.5 mm
Wall distance: 400 mm, 60 mm
Perforation: 13.1%
Hole size: 8 mm, 12 mm
Backing: standard acoustic non-woven
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.56
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.65 | 0.85 | 0.60 | 0.55 | 0.40 | 0.40 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | |
|---|---|---|
| 400 mm | αw0.56 | |
| 60 mm | αw0.48 |
Weight / density: <15 kg / m²
Dimensions: 1200 mm x 2000 mm