WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
MAkustik MA03 acoustic panel Type 13/3 slotted
Type 13/3 – MAkustik MA03 offset slotted
PTB reference data
Original description
MAkustik MA03 acoustic panel Type 13/3 slotted
Material properties
Manufacturer: MAkustik
Thickness: 46 mm
Wall distance: 170 mm
Perforation: 19%
Hole size: 3 mm
Backing: acoustic non-woven and 30 mm mineral wool
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.72
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.50 | 0.95 | 0.90 | 0.85 | 0.65 | 0.55 |
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Method (354): Measured
