WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
MAkustik MA20 veneered acoustic panel Type 1/3, 1 mm hole dia., 9% open area
Type 1/3 – Makustik MA20 veneered acoustic panel
PTB reference data
Original description
MAkustik MA20 veneered acoustic panel Type 1/3, 1 mm hole dia., 9% open area
Material properties
Manufacturer: MAkustik
Thickness: 20 mm
Wall distance: 30 mm
Perforation: 9%
Hole size: 1 mm
Surface: veneered
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.50
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.35 | 0.75 | 0.70 | 0.70 | 0.50 |
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Method (354): Measured
