EN 14058 - Protection against cold - Garments for protection in cool environments 

(EN 14058:2004 supersedes EN 14058:2000.)

This standard specifies the requirements and test methods for evaluating the performance of single garments that provide protection against the cooling of the wearer’s body in areas where the air temperature can be as low as -5 °C. The standard does not include specific requirements for headwear, footwear, or gloves.

A “cool environment” is characterized by a combination of humidity, wind, and temperatures as low as

-5°C. Some garments provide adequate protection against local body cooling (for ensembles, see EN 342) relative to the length of the wearer’s exposure to the cold, the wearer’s physiology, the composition of the wearer’s overall outfit, and specific environmental features (e.g., wind speed, temperature, humidity).

At moderate to low temperatures, garments that protect against local body cooling can be used for outdoor and indoor activities. In these instances, garments need not be made of watertight or air impermeable materials; these requirements are, then, optional for this standard. EN 14058 defines 1 criterion to ensure the proper functioning of protective clothing against the hazards of cool environments:

Thermal resistance (Rct) represents a quantity specific to textiles and indicates the amount of dry heat that can pass through a textile layer in a steady state condition as a result of a temperature gradient.

Performance requirements for air permeability (AP), resistance to water penetration (WP), and thermal insulation are optional and measured with the same criteria as EN 342.

Parameters:
a: thermal resistance (Rct), classes 1 – 3
b: air permeability, classes 1 – 3 (optional)
c: water penetration resistance classes 1 – 2 (optional)
d: thermal insulation value Icle in m²K/W (optional)
e: thermal insulation value Icle in m²K/W (optional)