Mineral fiber panel, bonded, sprayed surface

PTB reference data

Original description

Material properties

Thickness: 20 mm

Surface weight: 2.8 kg/m²

Backing: visible surface stabilized and sprayed (flake pattern)

Flow resistance: 90 Rayl

Mounting: spot-bonded to substrate

ISO 354 – reverberation chamber

αw

0.68

αp nach ISO 11654

250 Hz

0.15

500 Hz

0.50

1000 Hz

0.85

2000 Hz

0.95

4000 Hz

0.95

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Method (354): Measured