Acoustic IndexAcoustic Index
Plastic & filmLow absorption

Data source

PTB reference data

Physikalisch-Technische Bundesanstalt

Source: Manufacturer data

Value from the PTB table, not verified

Perforated PVC sheet, holes 1 mm, 50000 holes/m², 20% perforation ratio, 100 mm cavity

Barrisol perforated 032

PTB reference data

Original description

Perforated PVC sheet, holes 1 mm, 50000 holes/m², 20% perforation ratio, 100 mm cavity

Material properties

Manufacturer: BARRISOL - Normalu S.A.
Thickness: 0 in
Wall distance: 3.9 in
Perforation: 20%
Hole size: 0 in

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)

NRC
0.10
derived from ISO 354 lab data

Frequency values

αp nach ISO 11654

f (Hz)1252505001k2k4k
αp0.050.050.050.100.100.10

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Value from the PTB table, not verified

NRC: 0.10 (derived from ISO 354 lab data)

Terms of use
Measured values as a table (1 measurement)
Perforated PVC sheet, holes 1 mm, 50000 holes/m², 20% perforation ratio, 100 mm cavity: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upNRC100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
0.17 mm · 100 mm0.100.030.030.040.040.050.050.050.080.080.100.100.080.080.080.100.100.100.09
Measured values as a table (1 measurement)

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