MAkustik acoustic panel Type 6/2 slotted

Type 6/2 – MAkustik MA04 continuously slotted

PTB reference data

Original description

Material properties

Manufacturer: MAkustik

Thickness: 46 mm

Wall distance: 320 mm

Perforation: 25% slots (approx. 11% open area)

Backing: 30 mm mineral wool

ISO 354 – reverberation chamber

αw

0.89

αp nach ISO 11654

125 Hz

0.85

250 Hz

0.95

500 Hz

0.85

1000 Hz

1.00

2000 Hz

0.90

4000 Hz

0.65

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Method (354): Measured