Mineral woolHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 81
Armstrong Minaform S-rectangular honeycomb acoustic system
Minaform S-rectangular
PTB reference data
Original description
Armstrong Minaform S-rectangular honeycomb acoustic system
Material properties
Manufacturer: Armstrong Cork International GmbH
Thickness: 16 mm
Wall distance: 200 mm
Dimensions: 625 mm x 1250 mm
Perforation: irregular scattered perforation
Surface: white
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.69
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.25 | 0.70 | 1.15 | 1.05 | 1.00 |
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Method (354): Measured