WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe im Internet, mit Verweis auf ita-Prüfzeugnis, 14.11.2000
Wilhelmi Widoplan panels with 15 mm joint, mineral fiber backing
Panels with 15 mm joint
PTB reference data
Original description
Wilhelmi Widoplan panels with 15 mm joint, mineral fiber backing
Material properties
Manufacturer: Wilhelmi Werke AG
Backing: 30 mm mineral fiber
Up to fire class: A2 or B1
Application: ceiling
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.52
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.60 | 0.65 | 0.45 | 0.30 | 0.25 |
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Method (354): Measured
