WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
MAkustik acoustic panel Type 6/2 MA04 slotted
Type 6/2 – MAkustik MA04 continuously slotted
PTB reference data
Original description
MAkustik acoustic panel Type 6/2 MA04 slotted
Material properties
Manufacturer: MAkustik
Thickness: 46 mm
Wall distance: 170 mm
Perforation: 25% grooves (approx. 11% open area)
Backing: acoustic non-woven, 30 mm mineral wool
Surface: slotted
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.81
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 1.00 | 1.00 | 0.95 | 0.85 | 0.60 |
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Method (354): Measured
