Ecophon Focus B-D,F glass wool fiber absorber

Ecophon – Focus B-D,F

PTB reference data

Original description

Material properties

Manufacturer: Ecophon GmbH

Thickness: 20 mm

Wall distance: 200 mm

Backing: non-woven faced

Surface: treated with Akutex T

ISO 354 – reverberation chamber

αw

0.81

αp nach ISO 11654

125 Hz

0.45

250 Hz

0.80

500 Hz

0.85

1000 Hz

0.85

2000 Hz

0.95

4000 Hz

0.95

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Method (354): Measured