Ecophon Focus A/Gamma glass wool fiber absorber

Ecophon – Focus A/Gamma

PTB reference data

Original description

Material properties

Manufacturer: Ecophon GmbH

Thickness: 20 mm

Wall distance: 200 mm

Backing: non-woven faced

Surface: Akutex T treated

ISO 354 – reverberation chamber

αw

0.33

αp nach ISO 11654

125 Hz

0.50

250 Hz

0.40

500 Hz

0.45

1000 Hz

0.30

2000 Hz

0.20

4000 Hz

0.10

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Method (354): Measured