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-Quadrat honeycomb system
Minaform S-Quadrat
PTB reference data
Original description
Armstrong Minaform S-Quadrat honeycomb system
Material properties
Manufacturer: Armstrong Cork International GmbH
Thickness: 16 mm
Wall distance: 200 mm
Dimensions: honeycomb size: 625 mm x 625 mm, panel strip height: 300 mm
Perforation: irregular scattered perforation
Surface: painted white
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.49
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.15 | 0.40 | 0.80 | 0.85 | 0.75 |
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Method (354): Measured