Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Rigid plenum liner
PTB reference data
Original description
Rigid plenum liner
Material properties
Manufacturer: Knauf Fiber Glass
Thickness: 1 inch, 1 1/2 inch, 2 inches
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
0.87
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.65 | 1.05 | 1.05 | 1.05 | 1.05 |
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| Compare | Value | ||
|---|---|---|---|
| 2 inches | 0.50 lb/ft² | αw0.87 | |
| 1 1/2 inch | 0.37 lb/ft² | αw0.76 | |
| 1 inch | 0.25 lb/ft² | αw0.61 |
Dimensions: 24 or 48 x 36 to 120 inches
Distance: 0