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Armstrong PERLA OP 1.00

Nrc	0.95
Rw db	12
Cac db	25
Colour	Blanc
System	Apparent et démontable - Système C
Alpha w	1
Dnfw db	25
Nominal	600 x 600 mm, 675 x 675 mm, 1200 x 600 mm
Material	mineral
Width mm	600
Edge type	Board
Length mm	600
Air quality	A+
Thickness mm	20
Weight kg m2	3.1
Alpha p 125 hz	0.5
Alpha p 250 hz	0.85
Alpha p 500 hz	0.95
Alpha w values	0.90; 0.95; 1.00
Emission class	E1
Alpha p 1000 hz	0.95
Alpha p 2000 hz	1
Alpha p 4000 hz	1
Cleanroom class	ISO 4
Absorption class	A
Reaction to fire class	A2-s1, d0
Sustainability percent	73.7
Sustainability standard	EN ISO 14021
Light reflection percent	85
Thermal conductivity w mk	0.04
Formaldehyde emission level	lowest possible test result
Moisture resistance rh percent	95
Indoor air quality certification	IACG

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