Topakustik Fineline wood fiber absorber with mineral wool

Topakustik – Fineline

PTB reference data

Original description

Material properties

Manufacturer: n'H Akustik + Design AG

Wall distance: 200 mm

Perforation: 8.4 %

Backing: 30 mm mineral wool 60 kg/m³

Surface: acoustic non-woven 60 g/m² faced

ISO 354 – reverberation chamber

αw

0.71

αp nach ISO 11654

125 Hz

0.30

250 Hz

0.70

500 Hz

0.85

1000 Hz

0.85

2000 Hz

0.80

4000 Hz

0.80

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Method (354): Measured