WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
MAkustik MA02 Acoustic Panel with stepped perforation
Type 3/16 – MAkustik MA02 stepped perforation
PTB reference data
Original description
MAkustik MA02 Acoustic Panel with stepped perforation
Material properties
Manufacturer: MAkustik
Thickness: 46 mm
Wall distance: 0 mm
Perforation: 3%
Hole size: 3/10 mm
Backing: 30 mm mineral wool
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.45
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.60 | 1.00 | 0.55 | 0.25 | 0.15 |
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Method (354): Measured