PlasticLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
Perforated PVC sheet, holes 1 mm, 50000 holes/m², 20% perforation ratio, 100 mm cavity
Barrisol perforated 032
PTB reference data
Original description
Perforated PVC sheet, holes 1 mm, 50000 holes/m², 20% perforation ratio, 100 mm cavity
Material properties
Manufacturer: BARRISOL - Normalu S.A.
Thickness: 0.17 mm
Wall distance: 100 mm
Perforation: 20%
Hole size: 1 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.07
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.05 | 0.10 | 0.10 | 0.10 |
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Method (354): Measured