PlasticHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
Barrisol perforated PVC sheet, 20% open area, 70 mm mineral fiber backing
Barrisol perforated 032
PTB reference data
Original description
Barrisol perforated PVC sheet, 20% open area, 70 mm mineral fiber backing
Material properties
Manufacturer: BARRISOL - Normalu S.A.
Thickness: 0.17 mm
Wall distance: 30 mm
Perforation: 20%
Hole size: 1 mm
Backing: 70 mm mineral fiber
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.70
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.65 | 0.85 | 0.75 | 0.75 | 0.75 |
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Method (354): Measured