Plastic & filmHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 b 1.1-3
Value from the PTB table, not verified
Folded PVC plastic film
PTB reference data
Original description
Folded PVC plastic film
Material properties
Thickness: 0 in
Wall distance: 0.8 in
Surface weight: 0.2 kg/m²
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.45
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.30 | 0.55 | 0.60 | 0.55 | 0.30 |
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Value from the PTB table, not verified
NRC: 0.45 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 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 · 20 mm · gefaltet, Materialfläche / Prüffläche = 3 | 0.45 | 0.00 | 0.00 | 0.08 | 0.10 | 0.13 | 0.60 | 0.43 | 0.51 | 0.68 | 0.62 | 0.66 | 0.58 | 0.53 | 0.59 | 0.50 | 0.42 | 0.30 | 0.25 | 0.18 |
Measured values as a table (1 measurement)
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