FoamHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 103
Faist empfa-Dämmstoff M 1135 convoluted foam
empfa-Dämmstoff – M 1135
PTB reference data
Original description
Faist empfa-Dämmstoff M 1135 convoluted foam
Material properties
Manufacturer: Faist Automotive GmbH & Co. KG
Thickness: approx. 30 mm
Surface: convoluted foam
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.48
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.15 | 0.20 | 0.50 | 0.90 | 0.95 |
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Method (354): Measured