Master
Master™ Ds
System range
Size, mm
600x600
T24 •
Thickness 40
M242 M236
System and product description
Suitable for schools or other premises where strict demands are made on good acoustics and speech intelligibility. For applications where a suspended ceiling with a concealed grid is required, but individual tiles must be easily demountable.

Ecophon Master Ds has a concealed grid and symmetrical edge design, allowing easier assembly, integration of light fittings and ventilation. The ceiling has an even appearance, with the bevelled edges forming a discreet groove between the tiles. The tiles are easily demountable. The systems consist of Ecophon Master Ds tiles and Ecophon Connect grid systems, with an approximate weight of 6 kg/m². The tiles are manufactured from high density glass wool. The visible surface is available with three different surface coatings to meet different sound absorption needs: alpha, beta and gamma. The back of the tile is covered with glass tissue. The edges are painted.

For best performance and system quality, use Ecophon Connect grid and accessories. The grid is manufactured from galvanized steel. The system is patented in the US and patent pending in Europe.
Acoustics
Acoustic:
product Master Ds / alpha Master Ds / beta Master Ds / gamma
o.d.s mm 95 200 105 200 95 200
absorption class A A C C E E
Sound Absorption: Test results according to EN ISO 354.
Classification according to EN ISO 11654, and the single value ratings for NRC and SAA according to ASTM C 423.
Sound Insulation: Dn,c,w=31 dB according to ISO 140-9 and evaluation according to EN ISO 717-1. CAC=33 dB according to ASTM E 1414 and evaluation according to ASTM E 413
Sound Privacy: AC(1.5)=200 /alpha according to ASTM E 1111 and E 1110. /beta and /gamma are not suitable.
Technical info
Accessibility: The tiles in size 600x600 and 1200x600 are easliy demountable. The tiles in size 1200x1200 and XL sizes are demountable. Minimum demounting depth according to installation diagrams.
Cleanability: Daily dusting and vacuum cleaning. Weekly wet wiping.
Light efficiency: White Frost, nearest NCS colour sample S 0500-N, 85% light reflectance (of which more than 99% is diffuse reflection). Retro reflection coefficient 63 mcd*m-2lx-1. Gloss < 1.
Influence of climate: The tiles withstand a permanent ambient RH up to 95% at 30°C without sagging, warping or delaminating (ISO 4611).
Indoor Climate: Certified by the Indoor Climate Labelling, recommended by the Swedish Asthma and Allergy Association, and can be used in rooms classified as ISO class 6/M3.5.
Environmental influence: Granted the Nordic Swan eco-label. Fully recyclable.
Fire safety: The glass wool core of the tiles is tested and classified as non-combustible according to EN ISO 1182. The systems are classified as fire protective covering according to NT FIRE 003. See Technical properties, Fire safety.
Country Class Standard
Europe EN 13501-1 A2-s1,d0
Mechanical properties: For information regarding live load and requirements for load bearing capacity, see installation diagrams. Conditions: See Functional demands, Mechanical properties.
Installation: Installed according to system range.
For Acousticians
"Acoustical evaluation of rooms requires several room acoustic descriptors. Reverberation time alone is not enough!" Erling Nilsson / Acoustics Specialist Ecophon
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