EN14058

Description 
The EN 14058 standard specifies the requirements for protective clothing to protect the body against cool environments. Cool environment is defined in the standard as a possible combination of humidity and wind at temperatures of -5 °C and above.
Protective clothing within the scope of this standard includes trousers, jackets, waistcoats, coats and also removable thermal linings. It does not include footwear, gloves or separate headgear. In addition, cold protection clothing systems are excluded from this standard. 
Test method 
The standard defines, among other things, the determination of the thermal resistance. The lower the thermal resistance Rct value, the easier it is for the heat produced by humans to penetrate through the clothing to the outside. 
 Air permeability (AP) 
There are 3 possible classes: 
· Class 1 materials are suitable for low air velocities of less than 1 m/s, such as those found in cool indoor environments. 
· Class 2 materials are suitable for air velocities of less than 5m/s. 
· Class 3 materials are for high air speeds ≥ 5m/s, such as outdoor activities.