Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 74
Armstrong Classic mineral fiber acoustic panels
Classic
PTB reference data
Original description
Armstrong Classic mineral fiber acoustic panels
Material properties
Manufacturer: Armstrong Cork International GmbH
Thickness: 15 mm
Wall distance: 500 mm
Dimensions: 600 × 1200 mm, 625 × 1250 mm
Surface weight: 4.7 kg/m²
Surface: three-layer paint coating, PVAC-based
Mounting: metal suspension
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.65
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.40 | 0.60 | 0.90 | 0.85 | 0.70 |
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Method (354): Measured