GypsumHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe im Internet unter www.scherff.de
Scherff acoustic plaster, flattened surface, approx. 10 mm
PTB reference data
Original description
Scherff acoustic plaster, flattened surface, approx. 10 mm
Material properties
Manufacturer: Scherff GmbH Co.KG
Thickness: approx. 10 mm
Surface: flattened
Up to fire class: A1 (DIN 4102)
Application: walls
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.54
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.25 | 0.30 | 0.65 | 0.75 | 0.90 |
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Method (354): Measured
