Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Armstrong Type 863 mineral fiber panel with vinyl-aluminum surface
Type 863
PTB reference data
Original description
Armstrong Type 863 mineral fiber panel with vinyl-aluminum surface
Material properties
Manufacturer: Armstrong World Industries
Thickness: 5/8 inch
Wall distance: 400 mm
Surface: Vinyl-faced aluminum
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.56
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.35 | 0.55 | 0.90 | 0.75 | 0.45 |
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Method (354): Measured