Micro-perforated PVC foil, clamped to an aluminum frame construction
Barrisol Microsorber
NRC 0.80
PTB reference data
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Glass & transparentHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.Hilge / C.Nocke
Value from the PTB table, not verified
Original description
Micro-perforated PVC foil, clamped to an aluminum frame construction
Material properties
Manufacturer: BARRISOL - Normalu S.A.
Thickness: 0.007-0.008 in
Wall distance: 3.9 in
Perforation: hole spacing 0.08 in
Hole size: 0.008 in
Mounting: clamped to an aluminum frame construction
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.80
derived from ISO 354 lab data
Frequency values
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Value from the PTB table, not verified
NRC: 0.80 (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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.007-0.008 in · 3.9 in · stretched membrane ceilings | 0.80 | 0.15 | 0.20 | 0.28 | 0.48 | 0.65 | 0.95 | 1.02 | 1.01 | 0.98 | 0.92 | 0.79 | 0.71 | 0.65 | 0.67 | 0.67 | 0.64 | 0.62 | 0.61 |
Measured values as a table (1 measurement)
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