Master D

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Master D
Suitable for schools or other premises where strict demands are made on good acoustics and speech intelligibility, but where facilities must be provided for demounting individual ceiling tiles. Ecophon Master D is installed in a concealed grid system, creating a ceiling with a smooth appearance, the bevelled edges create a distinctive groove between each tile. Each tile is demountable.


	Ecophon Master D has a glasswool core and is available with three different surface coatings to meet different sound absorption needs: alpha (Akutex T), beta and gamma. The back of the tile is covered with glass tissue. The edges are reinforced and painted.


	Master D is available in 600x600 mm tiles


	obtained by testing in accordance with room method (IN ISO 354). Master D/alpha has NRC value 0.95 measured according to ASTM C 423 in an E-400 mounting.

Min. overall depth of system:	with adjustable hanger 190mm, with direct fixing bracket 85mm
Min. demounting depth:	90mm
Max. loading:	Live load 40N, suspension 160N
Weight:	appr. 5 kg/m2, including suspension grid system
Accessibility:	demountable
Cleaning:	daily dusting and vacuum cleaning and weekly cleaning with a damp cloth
Moisture resistance:	withstands a permanent ambient relative humidity of up to 95% at 30°C
Handling and mechanical strength:	very good handling properties and relatively good mechanical strength
Light efficiency:	white 010, 87% light diffusion, 84% light reflectance
Fire safety:	BS 476 Parts 6 and 7, ASTM E84, DIN 4102, M0 (France), Nordtest Fire 003 and 004
Indoor climate:	Achieves the Nordic “Swan” eco-label, certified in accordance with the Indoor climate label, recommended by Swedish Asthma and Allergy Association, Cleanroom class M3.5/100 US federal standard 209E
Environmental influence:	Achieves the Nordic “Swan” eco-label. Fully recyclable.

Master A, Master E, Master F

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