WoodHighly absorbent

Data source

PTB reference data

Physikalisch-Technische Bundesanstalt

Source: DNA 1968, Tabelle a 3.1-4

Cement-bonded wood wool lightweight board, 50 mm thick, 30 mm air cavity

PTB reference data

Original description

Cement-bonded wood wool lightweight board, 50 mm thick, 30 mm air cavity

Material properties

Thickness: 50 mm
Wall distance: 30 mm
Dimensions: 500 × 2000 mm
Surface weight: 19.5 kg/m²
Flow resistance: 24 kPa·s/m²
Mounting: Air cavity coffering 500 mm x 500 mm (batten construction)

Measurement data

Sound absorption

ISO 354 – reverberation chamber

αw
0.46

Frequency values

αp nach ISO 11654

f (Hz)1252505001k2k4k
αp0.100.250.550.550.600.70

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Method (354): Measured

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