PlasticHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
MAkustik MA15 translucent acoustic element Type 2/6
Type 2/6 – Makustik MA15 translucent acoustic element
PTB reference data
Original description
MAkustik MA15 translucent acoustic element Type 2/6
Material properties
Manufacturer: MAkustik
Thickness: 20 mm
Wall distance: 150 mm
Perforation: 7%
Hole size: 2 mm
Backing: acoustic non-woven coating, 30 mm mineral wool
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.77
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.90 | 1.00 | 0.90 | 0.95 | 0.60 |
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Method (354): Measured