FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://www.illbruck-raumakustik.de
illbruck absorber ECO melamine foam element, free-hanging
absorber ECO
PTB reference data
Original description
illbruck absorber ECO melamine foam element, free-hanging
Material properties
Manufacturer: illbruck GmbH
Wall distance: row center distance 625 mm
Mounting: free-hanging
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.79
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.35 | 0.70 | 1.10 | 1.20 | 1.20 |
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Method (354): Measured
