MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe im Internet, mit Verweis auf IBP-Prüfzeugnis, 14.11.2000
Wilhelmi Mikropor M metal acoustic panel without backing
Mikropor M without backing
PTB reference data
Original description
Wilhelmi Mikropor M metal acoustic panel without backing
Material properties
Manufacturer: Wilhelmi Werke AG
Backing: without backing
Surface: Wilhelmi acoustic non-woven coated with Wilhelmi acoustic paint
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.64
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.80 | 0.70 | 0.70 | 0.80 | 0.70 |
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Method (354): Measured
