FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Wedge-shaped, polyurethane foam panels
PTB reference data
Original description
Wedge-shaped, polyurethane foam panels
Material properties
Manufacturer: Sonex Division
Thickness: 2 inches, 3 inches, 4 inches
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
0.83
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.70 | 1.00 | 1.05 | 1.00 | 1.00 |
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| Compare | Value | ||
|---|---|---|---|
| 4 inches | 0.67 lb/ft² | αw0.83 | |
| 3 inches | 0.51 lb/ft² | αw0.76 | |
| 2 inches | 0.34 lb/ft² | αw0.62 |
Dimensions: 24 x 48 in., 48 x 48 in.
Distance: 0
