O.R.V. Polipren T polyester fiber absorber

Polipren T

PTB reference data

Original description

Material properties

Manufacturer: O.R.V. Ovattificio Resinatura Valpadana

Thickness: 20 mm

Application: thermal and sound insulation, sound absorption

ISO 354 – reverberation chamber

αw

0.79

αp nach ISO 11654

250 Hz

0.40

500 Hz

0.65

1000 Hz

1.00

2000 Hz

0.95

4000 Hz

1.00

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Method (354): Measured