FoamHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 98
Value from the PTB table, not verified
Porous absorber, 15 mm polyether foam, 1.5 mm thermoplastic facing
empfa-Dämmstoff – M 507/15/1,5
PTB reference data
Original description
Porous absorber, 15 mm polyether foam, 1.5 mm thermoplastic facing
Material properties
Manufacturer: Faist Automotive GmbH & Co. KG
Thickness: approx. 0.6 in
Wall distance: 0 in
Surface: thermoplastic facing
Mounting: adhesive repellent, adhesive, release paper
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.10
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.05 | 0.10 | 0.20 | 0.35 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Value from the PTB table, not verified
NRC: 0.10 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ca. 16 mm · ca. 3,17 kg / m² · 0 | 0.10 | 0.03 | 0.03 | 0.04 | 0.04 | 0.04 | 0.05 | 0.06 | 0.07 | 0.08 | 0.09 | 0.12 | 0.16 | 0.20 | 0.25 | 0.32 | 0.37 |
Measured values as a table (1 measurement)
Access frequency bands, variants and export. Create a permanent free account
Last updated: