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Armstrong CORTEGA

Nrc	0.55
Colour	Blanc
System	Apparent et démontable - Système C
Alpha w	0.55(H)
Nominal	1200 x 600 mm
Material	mineral
Width mm	1200
Edge type	Tegular 24
Length mm	600
Air quality	A+
Thickness mm	15
Weight kg m2	3.6 - 3.8
Alpha w values	0.60; 0.65; 0.70; 0.75
Emission class	E1
Absorption class	D
Durability standard	EN ISO 14021
Moisture resistance	70% RH
Sound insulation db	32
Alpha p by frequency	125 Hz: 0.30; 250 Hz: 0.35; 500 Hz: 0.50; 1000 Hz: 0.65; 2000 Hz: 0.70; 4000 Hz: 0.80
Reaction to fire class	A2-s1,d0
Sound insulation rating	Dn,f,w
Recycled content percent	22.5-25.4% (2023)
Air quality certification	IACG
Light reflectance percent	83
Reaction to fire standard	EN 13501-1
Sound insulation standard	EN ISO 10848-2 / EN ISO 717-1
Thermal conductivity w mk	0.06
Fire classification russia	KM1 (G1, V1, D1, T1)
Formaldehyde emission level	lowest possible test result
Acoustic absorption standard	EN ISO 354 / EN ISO 11654
Thermal conductivity standard	EN 12667
Fire classification russia standard	123-FZ

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