Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
Ecophon Master A/Extra Bass glass wool panel, Akutex T
Ecophon – Master A, alpha + Master Extra Bass
PTB reference data
Original description
Ecophon Master A/Extra Bass glass wool panel, Akutex T
Material properties
Manufacturer: Ecophon GmbH
Thickness: 140 mm
Wall distance: 200 mm
Backing: non-woven faced
Surface: Akutex T
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.95
Frequency values
αp nach ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.85 | 0.95 | 0.95 | 1.00 | 1.00 |
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Method (354): Measured
