Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Fiberglass panel with perforated vinyl film facing
Type 2906
PTB reference data
Original description
Fiberglass panel with perforated vinyl film facing
Material properties
Manufacturer: Armstrong World Industries
Thickness: 5/8 inch
Wall distance: 400 mm
Surface: perforated vinyl film facing
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.74
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.70 | 0.70 | 0.65 | 0.85 | 0.85 | 0.70 |
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Method (354): Measured