WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 83
Danzer Deweton acoustic panel Type A (Helmholtz resonator)
PTB reference data
Original description
Danzer Deweton acoustic panel Type A (Helmholtz resonator)
Material properties
Manufacturer: Danzer Furnierwerke GmbH
Thickness: 25 mm
Wall distance: 30 mm
Surface: Visible-side slots 4 mm wide at a distance of 34 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.41
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.35 | 0.45 | 0.40 | 0.65 | 0.55 |
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Method (354): Measured
