Galvanized expanded metal, with PLANO A2 (thickness = 15 mm), closed ceiling, wall-to-wall solution – PTB – Physikalisch-Technische Bundesanstalt | Acoustic Index

Sound absorption

ISO 354 – reverberation chamber· 4 variants

αw

0.56

Frequency values

αp per ISO 11654

125 Hz

0.40

250 Hz

0.45

500 Hz

0.50

1000 Hz

0.60

2000 Hz

0.70

4000 Hz

0.70

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Compare		Value
	500 mm	αw0.56
	300 mm	αw0.53
	200 mm	αw0.50
	100 mm	αw0.47

Weight / density: 5,9 - 8,3 kg/m²

Dimensions: 2500 x 1250 mm

Data source

PTB reference data

Galvanized expanded metal, with PLANO A2 (thickness = 15 mm), closed ceiling, wall-to-wall solution

Material properties

Measurement data

Sound absorption

Frequency values