Plastic & filmBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 b 1.1-4
Value from the PTB table, not verified
PVC plastic film, folded
PTB reference data
Original description
PVC plastic film, folded
Material properties
Thickness: 0.2 mm
Wall distance: 100 mm
Surface weight: 0.2 kg/m²
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.45
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.20 | 0.45 | 0.65 | 0.60 | 0.35 |
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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 | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0,2 mm · 0,2 kg/m^2 · 100 mm · gefaltet, Materialfläche / Prüffläche = 3 | 0.45 | 0.00 | 0.00 | 0.20 | 0.30 | 0.10 | 0.13 | 0.33 | 0.43 | 0.57 | 0.65 | 0.71 | 0.60 | 0.65 | 0.65 | 0.53 | 0.48 | 0.32 | 0.22 | 0.17 |
Measured values as a table (1 measurement)
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