Mineral fiber panel, surface-treated on both sides, 20 mm

PTB reference data

Original description

Material properties

Thickness: 20 mm

Wall distance: 50 mm

Surface weight: 2.34 kg/m²

Density: 117 kg/m³

Flow resistance: 0.05 kPa·s/m²

Mounting: on 25 mm cross-battening

ISO 354 – reverberation chamber

αw

0.73

αp nach ISO 11654

250 Hz

0.30

500 Hz

0.70

1000 Hz

0.95

2000 Hz

0.90

4000 Hz

0.80

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Method (354): Measured