GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe www.sto.at
Sto acoustic spray plaster, Euroclass A2
Sto acoustic spray plaster
PTB reference data
Original description
Sto acoustic spray plaster, Euroclass A2
Material properties
Manufacturer: Sto Ges.m.b.H
Thickness: 15 mm
Wall distance: 400 mm, 0 mm
Up to fire class: A2
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.52
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.20 | 0.45 | 0.65 | 0.65 | 0.95 |
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| Compare | Value | |
|---|---|---|
| 400 mm | αw0.52 | |
| 0 | αw0.48 |
