Name: Knauf Perlgips perforated board, staggered perforation 8/12/36
Creator: Physikalisch-Technische Bundesanstalt (PTB)

Knauf Perlgips perforated board, staggered perforation 8/12/36 – PTB – Physikalisch-Technische Bundesanstalt | Acoustic Index

ISO 354 – reverberation chamber· 2 variants

αw

0.66

αp per ISO 11654

125 Hz

0.85

250 Hz

0.70

500 Hz

0.65

1000 Hz

0.70

2000 Hz

0.60

4000 Hz

0.45

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Compare		Value
	500 mm	αw0.66
	53 mm	αw0.55

Weight / density: ca. 7 kg / m²

Dimensions: 1250 x 2500 mm

Knauf Perlgips perforated board, staggered perforation 8/12/36

Material properties