Plastic & filmHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 73
Value from the PTB table, not verified
USG Interiors Trocal rigid PVC panel with fiber absorber
Trocal panel
PTB reference data
Original description
USG Interiors Trocal rigid PVC panel with fiber absorber
Material properties
Manufacturer: USG Interiors
Thickness: 0 in
Dimensions: panel width 3.3 in, length max. 6 m
Surface weight: 3.2 kg/m²
Backing: 0.8 in Optirho
Mounting: on Z-sub-frame
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.65
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|
| αp | 0.55 | 0.65 | 0.85 | 0.70 | 0.45 |
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Value from the PTB table, not verified
NRC: 0.65 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 mm · 3,2 kg / m² | 0.65 | 0.53 | 0.55 | 0.60 | 0.62 | 0.70 | 0.80 | 0.88 | 0.85 | 0.78 | 0.70 | 0.60 | 0.50 | 0.40 | 0.40 |
Measured values as a table (1 measurement)
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