WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe im Internet, mit Verweis auf ita-Prüfzeugnis, 14.11.2000
Wilhelmi Mikropor S wood acoustic panel with sound insulation backing
Mikropor S with sound insulation backing - Akustik
PTB reference data
Original description
Wilhelmi Mikropor S wood acoustic panel with sound insulation backing
Material properties
Manufacturer: Wilhelmi Werke AG
Backing: sound insulation backing
Surface: microporous acoustic non-woven and Wilhelmi acoustic color coating
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
0.55
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.30 | 0.35 | 0.70 | 0.80 | 0.65 |
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| Compare | Value |
|---|---|
| αw0.55 | |
| αw0.54 | |
| αw0.53 |