FoamHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 188
Siegfried Keller Idikell M 3817/28 PU foam absorber with PVC foil
Idikell – M 3817/28
PTB reference data
Original description
Siegfried Keller Idikell M 3817/28 PU foam absorber with PVC foil
Material properties
Manufacturer: Siegfried Keller AG
Thickness: 28 mm
Hole size: 3 mm
Surface: perforated 5 mm thick PVC foil
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.40
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.10 | 0.20 | 0.45 | 0.85 | 0.80 |
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Method (354): Measured