Barrisol unperforated matt sheet with 70 mm insulation on ground

Barrisol matt sheet unperforated

PTB reference data

Original description

Material properties

Manufacturer: BARRISOL - Normalu S.A.

Wall distance: 30 mm

ISO 354 – reverberation chamber

αw

0.43

αp nach ISO 11654

125 Hz

0.40

250 Hz

0.85

500 Hz

0.70

1000 Hz

0.35

2000 Hz

0.20

4000 Hz

0.10

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Method (354): Measured