EN ISO 14058

PROTECTIVE CLOTHING. GARMENTS FOR PROTECTION AGAINST COLD ENVIRONMENTS

EN ISO 14058 – This standard specifies the requirements and test methods for the features of garments for protection of the body against cold environments with temperatures above -5 ºC.

EN ISO 14058 CERTIFICATION REQUIREMENTS

TEST METHOD

DESCRIPTION

MINIMUM COMPLIANCE VALUES

EN 31092 o EN ISO 5085-1

Thermal resistance (RCT): RCT is tested for all layers of the garment according the EN 31092 or EN ISO 5085-1 standard, depending on the sample thickness. The value obtained is determined according to the type of minimum compliance values.

RTC (m² · K/W)

Performance level	Min	Max
Class 1	0.06	> 0.12
Clase 2	0.12	> 0.18
Clase 3	0.18	> 0.25

EN ISO 15831

Resulting effective thermal insulation (Icler) (optional): moving manikin.
Requirement: Icler ≥ 0.17 m² · K/W.
Simple garments: tested with reference clothing R.
Groups: tested with reference clothing B (polar type).
Test parameters are: HR 50%.
Air velocity: 0.3 – 0.5 m/s.
Walking velocity: 1 m/s.

Insulation Icler m²·K/W	Activity while wearer is moving
	Light 115 W/m²		Medium 170 115 W/m²
	8h	1h	8h	1h
0.170	11	2	0	-9
0.230	5	-5	-8	-19
0.310	-1	-15	-19	-32

EN ISO 9237

Air permeability (AP): must be measured for the entire group.
If, due to technical reasons, the group of materials cannot be tested as one piece, components must be tested individually and are measured based on the component with the lowest value.
Tests are performed at a differential pressure of 100 Pa on a surface of 20 cm².
There are three types of classes according to air permeability.

Air permeability (mm/s)

Performance level	Min	Max
Class 1	100	–
Class 2	5	≤ 100
Class 3	–	≤ 5

EN 20811

Water penetration resistance (WP) (optional): measured from the exterior layer, along with all impermeable layers and their seams.
There are two levels of classification: class 1 and class 2.
Test parameters are as follows: water pressure increase rate of 980 ± 50 Pa/min.
Number of samples: 5 for seam testing and 5 for material testing.
Sample size must have a minimum diameter of 130 mm.

WP (Pa)

Performance level	Min	Max
Class 1	8000	≤ 13000
Class 2	> 13000	–

EN 31092

Water vapour resistance (RET): measured if water penetration resistance is required.

The group of all layers (excluding underwear) must be less than 55 m² · Pa/W.

ISO 13688

MARKING: Pictogram
EN 14058 Y: class of thermal resistance
Y: class according to air permeability (optional)
Y: class according to water penetration (optional)
Y: Icler (optional)