pinta acoustic Waffle willtec melamine foam

Waffel willtec – 65/125

PTB reference data

Original description

Material properties

Manufacturer: pinta acoustic gmbh

Thickness: 65/125 mm

Wall distance: 0 mm

ISO 354 – reverberation chamber

αw

0.72

αp nach ISO 11654

125 Hz

0.15

250 Hz

0.45

500 Hz

0.85

1000 Hz

0.90

2000 Hz

0.95

4000 Hz

1.05

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Method (354): Measured