9 mm tufted pile carpet on felt underlay

PTB reference data

Original description

Material properties

Thickness: 9 mm

Backing: felt underlay

ISO 354 – reverberation chamber

αw

0.44

αp nach ISO 11654

125 Hz

0.05

250 Hz

0.05

500 Hz

0.10

1000 Hz

0.20

2000 Hz

0.25

4000 Hz

0.25

Create a permanent free account — Access frequency bands, variants and export.

Free. No password required.

Method (354): Measured