Fonoleca nervato concrete block with expanded clay as cavity resonator

Cavity resonator – Fonoleca nervato

PTB reference data

Original description

Material properties

Manufacturer: Associazione Nazionale Produttori Elementi Leca

Wall distance: 150 mm

ISO 354 – reverberation chamber

αw

0.74

αp nach ISO 11654

125 Hz

0.15

250 Hz

0.55

500 Hz

1.00

1000 Hz

0.95

2000 Hz

0.85

4000 Hz

0.95

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Method (354): Measured