Quality norm  : SR 2077/3/1993
Textile insertion : EP 125; EP 250; EP 315; EP 400
Conveyor width : Between  500 and 1600 mm,  ±1%
Conveyor thickness:

• Dimensional tolerances:
• thickness between 8 to 10 mm, ±1 mm.
• thickness over 10 mm, ±10 %.

Rubber layer thikness:

• for thickness up to 4 mm, +1 mm/-0,2 mm
• for thickness over  4 mm, +1 mm/-0,5%

Conveyor lenght:

• max 300 meters: +2%/-0,5%

Moulded edge width:

• max. 15 mm

Number of EP insertions

• Between 2-6  plies

Mechanical and physical characteristics of the rubber  layer

Crt	Characteristics	U.M.	Imposed value
1	Tensile strenght; min	daN/cm2	150
2	Elongation at break; min	%	400
3	Abrasion resistance ; max	mm3	200
4	Resistance to accelerated aging oven (168h at 700oC) -Variation of breaking strenght ; max - loss of elongation at break ; max -loss of grip ; max	% % %

Conveyor belt characteristics:

Crt	Characteristics	U.M.	Imposed value
1	Classs resistance (Rr) min / Numbern of textile plies - conveyor types with 2 plies , commonly used - conveyor types with more than 2 plies , commonly used	(daN/cm) /nr. ins	- 250/2; 315/2; 400; 500/2; 630/2; 800/2 - 315/3; 400/3; 630/4; 800/4; 1000/5; 1250/5; 1600/5; 2000/5
2	Elongation under reference load; max	%	4
3	Adhesion between plies ; min	daN/cm	5
4	Adhesion between plies and the rubber coating, min	daN/cm	4
5	Surface electrical resitance ; max		3x108
6	Duration of flame persintance after withdrawal burner : - the amount for each group of 6 specimens; max - for each test-piece tested ; max	s s	45 15
7	Returninh flame		The flame should not reappear after aplicarea curentului de aer