WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
MAkustik MA04 continuously slotted acoustic panel, 1.5 mm slots
Type 3/1.5 – MAkustik MA04 continuously slotted
PTB reference data
Original description
MAkustik MA04 continuously slotted acoustic panel, 1.5 mm slots
Material properties
Manufacturer: MAkustik
Thickness: 46 mm
Wall distance: 0 mm
Perforation: 33% slots (approx. 7% continuously open area)
Hole size: 1.5 mm slots, 3 mm spacing
Backing: 30 mm mineral wool
Mounting: no air cavity
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.67
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.55 | 1.00 | 1.00 | 0.75 | 0.60 |
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Method (354): Measured
