Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Duct liner (Bradford Fibertex R6)
Fibertex R6
PTB reference data
Original description
Duct liner (Bradford Fibertex R6)
Material properties
Manufacturer: Bradford Insulation
Thickness: 25 mm, 50 mm
Wall distance: 0 mm
Application: air duct
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.96
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.90 | 1.20 | 1.20 | 1.05 | 1.05 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | ||
|---|---|---|---|
| 50 mm | 3.0 kg / m² | αw0.96 | |
| 25 mm | 2.0 kg / m² | αw0.73 |
Dimensions: 120 x 150 cm
Distance: 0