En342 ensembles and garments for protection against cold

Workwear clothing certification explained

The EN 342:2004 standard related to clothing designed for protection in cold environments ranging from chill (-5°C) through to cold store (-25°C) to deep freeze (-40°C).

The EN342 standard is determined by four parameters (a,b,c,d) all detailed below:

The standard does not contain any specific requirements for head, hand or foot protection. however, sufficient protection must be worn along with a thermal base layer for this certification to apply.

a. Thermal insulation properties with motion

Indicates the thermal insulation of the garment in (m2.K/W), the higher the value the better the insulating properties. The (B) indicates that the item has been tested with thermal undergarments.

b. Thermal insulation properties without motion (optional)

This is an optional test which is measured the same as parameter a, but without any motion factored in.

c. Air permeability (1-3)

This indicates breathability of a garment, (1 highest, 3 lowest) breathability. A high air permeability allows for proper dry evaporative heat loss required to keep you warm and comfortable.

d. Waterproof penetration properties (1-2 optional)

Determines waterproof properties - this is not a requirement as garments being used in sub zero temperatures do not require waterproofing capabilities.

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