Icler value (insulation value under movement)
Significance:
The Icler value indicates the thermal insulation from the skin to the outer surface of protective clothing. This insulation is measured using a mobile test manikin.
Application in EN 342 Standard:
The EN 342 standard specifies requirements and test methods for clothing combinations and individual garments used for protection against cold. The thermal insulation is also classified based on measured insulation values.
Application in EN 14058 Standard:
In the EN 14058 standard, the "resulting basic thermal insulation Icler" is defined, which measures or calculates the thermal insulation from the skin to the outer clothing surface for a moving thermal manikin. The Icler value becomes relevant in this standard only when Rct is greater than or equal to 0.25 m2 K/W, which corresponds to Class 4. In that case, the Icler must be additionally tested and have a value between ≥ 0.174 m2 K/W and < 0.265 m2 K/W.
Comparison between Icle and Icler:
- Icle Value: This value is outdated and has no relevance to the current EN 342 standard.
- Icler Value: Refers to wearers in motion and is measured using a mobile test manikin. Mandatory in the EN 342 standard. In the EN 14058 standard, the Icler value becomes relevant from Class 4 (Rct greater than or equal to 0.25 m2 K/W).
Cold protection clothing from Fortdress - Certified according to EN 342.