Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Vinyl-faced fiberglass with vinyl film facing
Type 2907
PTB reference data
Original description
Vinyl-faced fiberglass with vinyl film facing
Material properties
Manufacturer: Armstrong World Industries
Thickness: 5/8 inch
Wall distance: 400 mm
Surface: Vinyl film
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.63
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.35 | 0.50 | 0.80 | 0.80 | 0.70 |
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Method (354): Measured