Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
Ecophon Focus DG glass wool fiber absorber
Ecophon – Focus DG
PTB reference data
Original description
Ecophon Focus DG glass wool fiber absorber
Material properties
Manufacturer: Ecophon GmbH
Thickness: 20 mm
Wall distance: 65 mm
Backing: non-woven faced
Surface: treated with Akutex T
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.75
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.55 | 0.95 | 0.95 | 0.95 | 0.95 |
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Method (354): Measured
