FoamHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 99
Faist empfa-Dämmstoff M 507/20/1.5 polyether foam
empfa-Dämmstoff – M 507/20/1,5
PTB reference data
Original description
Faist empfa-Dämmstoff M 507/20/1.5 polyether foam
Material properties
Manufacturer: Faist Automotive GmbH & Co. KG
Thickness: approx. 21 mm
Wall distance: 0 mm
Surface: thermoplastic coating
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.32
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.10 | 0.25 | 0.65 | 0.80 |
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Method (354): Measured