Steel
Uniform
Yarn
| Yarn Dtex | 400-2400 |
| Yarn filaments | 192-960 |
| Fiber colour | Uniform |
| Elongation at break, % not less than | 20 |
| Breaking load fN/tex, not less than | 18 |
| Variation between actual linear thickness and nominal, % | +/-5 |
| Actual moisture, %, not more than | 2 |
| Shade difference | Not allowed |
| Lubricant mass fraction, % not more than | 2 |