Stego Catalogue

EN 374:2016 - Protection against dangerous chemicals & micro-organisms

There are more than 15,000 different chemicals in use by many industries and an approved tested chemical gloves are the right solution against these risks. Penetration - is the flow of chemicals and micro-organisms through the porous material, seams, small holes or other small defects in the glove material. Permeation - is the process where a chemical passes through the glove’s material on a molecular level. Permeation means the chemical’s molecules penetration through the outer material of the glove. Diffusion is the movement of molecules through the material. Desorption is the outward flow of molecules from inside the glove. Degradation - deterioration of the physical properties of the glove in contact with the chemical. Degradation Resistance (DR) shall be reported in the User Instruction.

EN ISO 374-1

EN ISO 374-1 ‘Terminology and performance requirements for chemical risks. It is based on three test methods: • Penetration test in accordance with standard EN 374-2: 2014 • Permeation test in accordance with standard EN 16523-1: 2015 which replaces standard EN 374-3 • Degradation test in accordance with standard EN 374-4: 2013

NEW

OLD

EN ISO 374-1:2016

EN 374-1:2003

Protective gloves against dangerous chemicals and micro-organisms Removal of reference to micro-organisms in the text Number of test chemicals increased from 12 to 18

Protective gloves against chemicals and micro-organisms

Assumption of protection against micro-organisms

12 test chemicals

Beaker icon no longer used

Beaker for “waterproof protective gloves with limited protection against chemical dangers”

Gloves classified as type A, B or C

N/A

Change of labeling on the product: pictogram of conical flask with differing number of letters for test chemicals per type

Pictogram of conical flask with at least 3 letters for test chemicals

Type of gloves

Requirement

New Marking

EN ISO 374-1 / Type A

Penetration resistance (EN 374-2) Breakthrough time ≥ 30 min for at least 6 chemicals in the new list (EN 16523-1)

Type A

EN ISO 374-1 / Type B

Penetration resistance (EN 374-2) Breakthrough time ≥ 30 min for at least 3 chemicals in the new list (EN 16523-1)

Type B

EN ISO 374-1 / Type C

Penetration resistance (EN 374-2) Breakthrough time ≥ 10 min for at least 1 chemical in the new list (EN 16523-1)

Type C

Scoring: 3 specimens taken from the palm are tested for breakthrough times and the lowest is the result. The performance level is correlated with the breakthrough time table.

Cuffs: Gloves with long cuffs greater or equal to 400mm are also to be tested with samples taken at 80mm from end of cuff.

Chemicals Tested: The chemical permeation table now includes 6 new categories labeled M to R.

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