Name: Knauf Perlgips-Kassette perforated 4520 07-08, 8/12 mm holes, 10.5%
Creator: Physikalisch-Technische Bundesanstalt (PTB)

Knauf Perlgips-Kassette perforated 4520 07-08, 8/12 mm holes, 10.5% – PTB – Physikalisch-Technische Bundesanstalt | Acoustic Index

ISO 354 – reverberation chamber· 2 variants

αw

0.61

αp per ISO 11654

125 Hz

0.75

250 Hz

0.65

500 Hz

0.65

1000 Hz

0.65

2000 Hz

0.50

4000 Hz

0.25

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

Free. No password required.

Compare		Value
	500 mm	αw0.61
	53 mm	αw0.54

Dimensions: 625 x 625 mm

Knauf Perlgips-Kassette perforated 4520 07-08, 8/12 mm holes, 10.5%

Material properties