EN ISO 343

PROTECTIVE CLOTHING FOR RAIN

EN ISO 343 – This European standard specifies the minimum requirements and test methods applicable to protective clothing for the effects of precipitation.

EN ISO 343 CERTIFICATION REQUIREMENTS

TEST METHOD

DESCRIPTION

MINIMUM COMPLIANCE VALUES

EN 20811

To test a hydrostatic pressure increment of (980 ± 50) Pa/min, the following samples will be made:

Five samples to test the material before pre-treatment.
Five samples to test the seams before pre-treatment.
Five samples to test the material after pre-treatment with dry cleaning and/or washing.
Four treatments to test after pre-treatment with abrasion.
Four samples to test after pre-treatment with repeated flexion.
Four samples to test after pre-treatment with petroleum and oil.

If a sample obtains different classes on different tests, the lowest class must be the one indicated.

Water penetration resistance Wp	Class 1	Class 2	Class 3
Material before pre-treatment	Wp ≥ 8000 Pa	Does not need to be tested*	Does not need to be tested*
Material after each pre-treatment	Does not need to be tested*	Wp ≥ 8000 Pa	Wp ≥ 13000 Pa
Seams before pre-treatment	Wp ≥ 8000 Pa	Wp ≥ 8000 Pa	Wp ≥ 13000 Pa

*Does not need to be tested, as the worst situation for classes 2 and 3 is after pre-treatment.

Note: several requirements must be met for each class.

EN 31092

Resistance to water vapour, R_et (EN 31092): tests the entire group of materials, except for anti-capillarity grooves and retroreflective and fluorescent bands.

Water vapour resistance R_etm² · Pa/W

Class 1* – R_et > 40
Class 2 – 20 < R_et ≤ 40
Class 3 – R_et≤ 20

*Class 1 has a limited time of use

ISO 4674

The material of the exterior layer must withstand tear resistance.

≥ 25 N

EN 5077

Determination of dimensional variations upon home washing and drying (3% maximum for woven and 5% maximum for knitted).

< 3% woven fabric
< 5% knitted fabric

ISO 1421 / EN 13934-1

The material of the exterior layer must withstand tensile resistance.

≥ 450 N (external material)