Plywood panels with mineral fiber filling on sub-frame

PTB reference data

Original description

Material properties

Thickness: 6 mm

Wall distance: 100 mm

Surface weight: 4.2 kg/m²

Density: 100 kg/m³

Backing: mineral fiber panels

Flow resistance: 2 kPa·s/m

ISO 354 – reverberation chamber

αw

0.22

αp nach ISO 11654

125 Hz

0.60

250 Hz

0.40

500 Hz

0.20

1000 Hz

0.10

2000 Hz

0.05

4000 Hz

0.10

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Method (354): Measured