PlasticBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 b 1.1-1
PVC plastic film, stretched smooth, 0.2 mm, 20 mm air cavity
PTB reference data
Original description
PVC plastic film, stretched smooth, 0.2 mm, 20 mm air cavity
Material properties
Thickness: 0.2 mm
Wall distance: 20 mm
Surface weight: 0.2 kg/m²
Surface: stretched smooth
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.17
Frequency values
αp nach ISO 11654
| f (Hz) | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|
| αp | 0.00 | 0.35 | 0.20 | 0.10 | 0.05 |
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Method (354): Measured