Portwest - Do You Know Booklet

DO YOU KNOW 5

WHAT IS EN 342?

Wear Time The manikin test measures the amount of energy required to maintain warmth. This result is expressed in square metres Kelvin per Watt (m2K/W) this result can be used to estimate the maximum wear time based on the activity level of the wearer, the temperature of the environment and insulation value of the garment.

0.336 I cler (m

2 K/W) (Thermal insulation)

2 X

(Air Permeability)

(Water Penetration Resistance)

EN 342

Wearer Activity (Light)

Wearer Activity (Medium)

Garment Insulation I cler (m 2 K/W)

S463

Air Velocity (m/s)

Air Velocity (m/s)

EN342 is the European standard that applies to garments worn in cold environments. This standard specifies requirements and test methods for the performance of clothing ensembles (i.e two-piece suits/coveralls) for protection against the effects of cold environments equal to or below -5°C.

0.4

3

0.4

3

8hr

1hr

8hr

1hr

8h 1hr

8hr

1hr

0.336

-2

-18

6

-8

-18

-36

-7

-22

There are three main parameters: A Thermal insulation (this is tested using a full-size moving mannequin & measures the amount of energy required to maintain warmth) B Air Permeability (This is a measure of how windproof the garment is), AP, Class 1-3 (where 3 is best) C Water penetration (waterproofness) Class 1-2 (where 2 is best); optional test

A person wearing S463 performing light activity can withstand -2°C for 8hrs and -18°C for 1hr. A person performing Medium activity can withstand -18°C for 8hrs and -36°C for 1hr.

EN 342

The following styles are certified to EN 342: S427, S426, S768, S766, S765, RT27, C468, RT32, S266, S463, C465, C466, C467, S464, G465, C565, S434, S461, S460, RT30, RT34, R460, S467, S462, S360, S466, FR59, S433, CS10, S437, S686, S482, S489, CS11, FR58, CS12, S485, S585, FR53

EN 342