GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe www.knauf.de
Sto-Knauf Acoustic Element Ceiling D 125
Sto-Knauf Acoustic Element Ceiling D 125
PTB reference data
Original description
Sto-Knauf Acoustic Element Ceiling D 125
Material properties
Manufacturer: Knauf Hauptverwaltung Iphofen
Thickness: 30.5 mm + 2.5 - 3 mm plaster
Wall distance: 460 mm
Application: ceiling
Mounting: on metal sub-frame
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 4 variants
αw
0.65
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.70 | 0.80 | 0.75 | 0.65 | 0.55 |
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| Compare | Value |
|---|---|
| αw0.65 | |
| αw0.63 |
Weight / density: ca. 21 kg / m² incl. Putz
Dimensions: 900 x 2100 x 30,5 mm
