Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Mat-faced, smooth, HP duct liner
Linacoustic
PTB reference data
Original description
Mat-faced, smooth, HP duct liner
Material properties
Manufacturer: Manville
Thickness: 1 inch
Wall distance: 0 mm
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 | 0.05 | 0.30 | 0.60 | 0.85 | 1.00 | 1.00 |
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Method (354): Measured