Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Fiberglass lay-in panel with microperforated vinyl facing
Type 2942
PTB reference data
Original description
Fiberglass lay-in panel with microperforated vinyl facing
Material properties
Manufacturer: Armstrong World Industries
Thickness: 1 1/2 inch
Wall distance: 400 mm
Backing: Fiberglass
Surface: microperforated vinyl facing
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.91
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.85 | 0.90 | 1.10 | 1.05 | 0.95 |
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Method (354): Measured
