Page 354 - JBS_Core_Catalogue_2024_V1

COLD STORAGE WORKWEAR

WORKWEAR Health & Safety

High Visibility Garments

EN 342:2004 - Protection against cold (temperatures lower than -5°C)

The standard specifies requirements and test methods for performance of clothing ensembles (i.e. two piece suits or coveralls) and of single garments for protection
against cold environments. Cold environments are characterised by the combination of humidity and wind at air temperature below -5°C. The measured properties and
their subsequent classification are intended to ensure an adequate protection level under different user conditions. Protective clothing, designed to be worn at subzero
temperatures, must not only effect a sufficiently high thermal insulation, largely independent of the outer wind speed, but they must also be breathable, enabling a good
evaporation of sweat from the body. Without the latter the garment layers next to the body get moist or wet by sweat condensation, losing completely their thermal
insulation and leading to hypothermia. According to these demands the standard EN 342 defines 3 criteria to ensure the physiological function of protective clothing
against cold.
Following the standard EN 342 the outerwear's air permeability and water vapour resistance are classified into 3 respectively 2 classes each, expressing the material's
physiological quality for the use in cold protective clothing. Class 3 respectively 2 indicates the highest level of performance.
The following parameters are used:
a: (U) Icler; basic resulting insulation + type of reference underwear
b: (U) Icle; resulting thermal insulation optional: "X" means not tested
c: Air permeability (3 levels)
d: Water penetration resistance class (2 levels) optional: "X" means not tested

352 www.jbs.group