WoodLow-frequency absorber

Data source

PTB reference data

Physikalisch-Technische Bundesanstalt

Source: Odeon (Index 804)

4 mm asbestos or plywood boards fastened at random intervals (at least 0.4 * 0.6 m), over 75 mm cavity with 25 mm mineral wool

PTB reference data

Original description

4 mm asbestos or plywood boards fastened at random intervals (at least 0.4 * 0.6 m), over 75 mm cavity with 25 mm mineral wool

Material properties

Thickness: 4 mm
Wall distance: 75 mm
Dimensions: at least 0.4 × 0.6 m
Backing: 25 mm mineral wool
Mounting: fastened at random intervals

Measurement data

Sound absorption

ISO 354 – reverberation chamber

αw
0.18

Frequency values

αp nach ISO 11654

f (Hz)1252505001k2k4k
αp0.200.100.050.000.000.00

Create a permanent free accountAccess frequency bands, variants and export.

Free. No password required.

Method (354): Measured

Terms of use