| Crt | Characteristics | Conditions of eligibility |
| 1 | Tensile strenght; min | 20 (200) |
| 2 | Elongation at break; min | 400 |
| 3 | Abrasion resistance ; max | 200 |
| 4 |
Resistance to accelarated aging oven ( 168 h X 70oC) - variation of resistance ; max - variation of elongation ; max |
25 25 |
| Crt | Characteristics | U.M. | Imposed value |
| 1 |
Class resitance [Rr] min/nr. of 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; 400/2; 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 load reference , max | % | 4 |
| 3 | Adhesion between plies; min | daN/cm | 6 |
| 4 | Adhesion between plies and rubber layer, min | daN/cm | 6 |