Plastic & filmLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
Barrisol perforated 031 perforated PVC sheet, 4% open area
Barrisol perforated 031
PTB reference data
Original description
Barrisol perforated 031 perforated PVC sheet, 4% open area
Material properties
Manufacturer: BARRISOL - Normalu S.A.
Thickness: 0.17 mm
Wall distance: 100 mm
Perforation: 4%
Hole size: 1 mm
Backing: no mineral fiber
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.15
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.10 | 0.15 | 0.15 | 0.10 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 100 Hz | 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 | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.17 mm · 100 mm | 0.15 | 0.03 | 0.04 | 0.03 | 0.04 | 0.06 | 0.06 | 0.08 | 0.12 | 0.14 | 0.15 | 0.14 | 0.12 | 0.10 | 0.14 | 0.16 | 0.13 | 0.13 | 0.09 |
Measured values as a table (1 measurement)
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