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AMF THERMATEX® Alpha One – Board

Rw	17 dB
Nrc	1
Colour	Blanc
Dn f w	29 dB
System	Apparent et démontable - Système C
Alpha w	1
Nominal	24 mm
Material	mineral
Edge type	Board
Air quality	A+
Nrc standard	ASTM C 423
Weight kg m2	4
Certification	IACG; M1
Dimensions mm	600 x 600, 625 x 625, 1200 x 600
Alpha w values	0.90; 0.95; 1.00
Emission class	E1
Emission level	low emissions; best category
Cleanroom class	ISO 4
Absorption class	A
Air permeability	PM1 (≤ 30 m³/hm²)
Light reflection	88%
Recycled content	50.8% (2023)
Cleanroom standard	EN ISO 14644-1
Absorption standard	EN ISO 354; EN ISO 11654
Durability standard	EN ISO 14021
Humidity resistance	95% RH
Alpha p by frequency	125 Hz: 0.55, 250 Hz: 0.85, 500 Hz: 1.00, 1000 Hz: 0.95, 2000 Hz: 1.00, 4000 Hz: 1.00
Thermal conductivity	0.040 W/mK
Reaction to fire class	A2-s1,d0
Sound reduction standard	EN ISO 10140-2; EN ISO 717-1
Air permeability standard	DIN 18177
Reaction to fire standard	EN 13501-1; ASTM E 84
Formaldehyde emission level	lowest possible test result
Lateral attenuation standard	EN ISO 10848-2; EN ISO 717-1
Thermal conductivity standard	EN 12667

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Technical specifications