FoamHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 145
Value from the PTB table, not verified
Gummi-Stricker PSST asbestos foam panel with bitumen foil
PSST sound absorption panel with heavy layer – FN 71/25/2
PTB reference data
Original description
Gummi-Stricker PSST asbestos foam panel with bitumen foil
Material properties
Manufacturer: Gummi-Stricker
Thickness: approx. 27 mm
Wall distance: 0 mm
Backing: 2 mm bitumen foil
Surface: glass mesh fabric
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.40
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.15 | 0.40 | 0.65 | 0.90 | 0.95 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 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. 27 mm · ca. 4,2 kg / m² · 0 | 0.40 | 0.06 | 0.08 | 0.12 | 0.17 | 0.22 | 0.30 | 0.38 | 0.46 | 0.55 | 0.64 | 0.73 | 0.80 | 0.91 | 0.93 | 0.96 | 0.98 |
Measured values as a table (1 measurement)
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