EN 343
Protective garments against wet weather
Outer layer resistance to traction
No change: minimum 450N value and not including any materials which stretch more than 50%
Resistance to water penetration
| WP | Class 1 | Class 2 | Class 3 | Class 4 |
| Outer fabric before pre-treatment | â„ 8 000 Pa | _ | _ | _ |
| Exterior fabric after each pre-treatment | _ | â„ 8 000 Pa | â„ 13 000 Pa | â„ 20 000 Pa |
| Seams in X before pre-treatment | â„ 8 000 Pa | â„ 8 000 Pa | â„ 13 000 Pa | _ |
| Seams in X after pre-treatment by washing | _ | _ | _ | â„ 20 000 Pa |
Water vapour resistance
The water vapor resistance (WVR) of all combined layers of the garment must be consistent: the lower the WVR, the more breathable the complex.
| RET | Class 1 | Class 2 | Class 3 | Class 4 |
| MÂČ x Pa / W | RET > 40 | 25 < RET †40 | 15 < RET †25 | RET †15 |
EN 343: 2007 reminder
| RET | Class 1 | Class 2 | Class 3 | Class 4 |
| MÂČ x Pa / W | RET > 40 | 20 < RET †40 | Ret †20 | Not planned |
The water column states the pressure the garment should be able to withstand: the higher the water column, the more resistant the garment to water pressure
