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Knauf

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Delta 4 Rond 4 - Sans LM

Alpha w	0.35
Material	gypsum
Condition	Sans LM
Page produit	434
Certification	RE CSTB n° AC 98-020/2
Reaction au feu	A2-s1,d0
Perforation type	Rond
Suspension height mm	200
Taux perforation pct	6,15 à 15,36
Absorption coefficient 125hz	0.25
Absorption coefficient 250hz	0.35
Absorption coefficient 500hz	0.35
Absorption acoustique alpha w	0,35 à 0,70
Absorption coefficient 1000hz	0.3
Absorption coefficient 2000hz	0.3
Absorption coefficient 4000hz	0.3

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