Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Value from the PTB table, not verified
Conweb Tufflex G-37, cellulose non-woven panel core
Tufflex G-37
PTB reference data
Original description
Conweb Tufflex G-37, cellulose non-woven panel core
Material properties
Manufacturer: Conweb Bonded Fiber
Thickness: 1 inch, 3/4 inch
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.60
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.30 | 0.65 | 0.95 | 1.00 | 0.90 |
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| Compare | Value | ||
|---|---|---|---|
| 1 inch | 0.78 lb/ft² | αw0.60 | |
| 3/4 inch | 0.20 lb/ft² | αw0.45 |
Distance: 0
Measured values as a table (2 measurements)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 1 inch · 0.78 lb/ft² · 0 | 0.60 | 0.12 | 0.29 | 0.65 | 0.94 | 1.05 | 0.91 |
| 3/4 inch · 0.20 lb/ft² · 0 | 0.45 | 0.12 | 0.16 | 0.55 | 0.72 | 0.91 | 0.89 |
Measured values as a table (2 measurements)
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