WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 154
Wilhelmi Mikropor ST acoustic panel (chipboard, non-woven, lacquer)
Wilhelmi acoustic panel – Mikropor ST (1981)
PTB reference data
Original description
Wilhelmi Mikropor ST acoustic panel (chipboard, non-woven, lacquer)
Material properties
Manufacturer: Wilhelmi Werke AG
Thickness: approx. 18 mm
Wall distance: 50 mm
Backing: acoustic non-woven
Surface: matte spotted lacquer coating
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.54
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.40 | 0.55 | 0.80 | 0.70 | 0.65 |
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Method (354): Measured