Phenol-resin impregnated fiberglass, aluminized polyester film surface, self-extinguishing, can be washed or cleaned with high-pressure cleaner – PTB – Physikalisch-Technische Bundesanstalt | Acoustic Index

Sound absorption

ISO 354 – reverberation chamber· 3 variants

αw

0.72

Frequency values

αp per ISO 11654

125 Hz

0.35

250 Hz

0.65

500 Hz

0.80

1000 Hz

0.80

2000 Hz

0.85

4000 Hz

0.90

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Compare		Value
	100 mm	αw0.72
	55 mm	αw0.65
	25 mm	αw0.58

Weight / density: 1,2 kg / m²

Dimensions: 1150 x 1300 mm

Data source

PTB reference data

Phenol-resin impregnated fiberglass, aluminized polyester film surface, self-extinguishing, can be washed or cleaned with high-pressure cleaner

Material properties

Measurement data

Sound absorption

Frequency values