HAND PROTECTION Permeation Level Breakthrough Time (min) 1 >10 2 >30 3 >60 4 >120 5 >240 6 >480 The list of chemicals on which the gloves are tested has been expanded with a further siz chemicals. Increasing numbers of chemicals are used in industrial applications, and some were not covered by the previous standard. List of Test Chemicals Code Letter Chemical CAS Number Class Original A Methanol 67-56-1 Primary Alcohol B Acetone 67-64-1 Ketone C Acetonitrile 75-05-8 Nitrile Compound D Dichloromethane 75-09-2 Chlorinated Hydrocarbon E Carbon Disulphide 75-15-0 Sulfur containing organic compound F Toluene 108-88-3 Aromatic Hyrdrocarbon G Diethylamine 109-89-7 Amine H Tetrahydrofuran 109-99-9 Heterocyclic and Ether Compound I Ethyl Acetate 141-78-6 Ester J n-Heptane 142-82-5 Saturated Hydrocarbon K Sodium Hydroxide 40% 1310-73-2 Inorganic Base L Sulphuric Acid 96% 7664-93-9 Inorganic Mineral Acid, Oxidizing New M Nitric Acid 65% 7697-37-2 Inorganic Mineral Acid, Oxidizing N Acetic Acid 99% 64-19-7 Organic Acid O Ammonium Hydroxide 25% 1336-21-6 Organic Base P Hydrogen Peroxide 30% 7722-84-1 Peroxide S Hydrofluoric Acid 40% 7664-39-3 Inorganic Mineral Acid T Formaldehyde 37% 50-00-0 Aldehyde EN 374-5:2016 Protection Against Micro-organisms The new standard introduces testing for protection against viruses. The previous standard covered only fungi and bacteria. New markings will indicate whether gloves protect against bacteria and fungi only, or against bacteria, fungi, and viruses. The pictogram is used to mark gloves protecting from bacteria and fungi. The pictogram will be accompanied by the word ’VIRUS’ if the glove meets the requirements of the virus test method. EN 511:2006 Cold-Related Risks Gloves giving protection against cold are tested for two different cold situations: (a) Penetrating or convective cold (b) Contact cold, i.e., direct contact with cold objects. (c) Testing resistance to permeability by water is done when relevant. Level of Protection 0 1 2 3 4 A. Convective Cold (Isolation ITR/m²) I<0.10 0.1<I <0.25 0.15<I <0.22 0.22<I <0.30 0.30<I B. Contact Cold (Thermic Resistance R/m²) R<0.025 0.025<R <0.050 0.050<R <0.100 0.100<R <0.150 0.150<R C. Water Penetration, 5 min Penetration No Penetration EN 511 - Testing EN 16350:2014 Electrostatic Properties The use of anti-static (dissipative) gloves is important in environments with hazards related to fire and/or explosion. The phenomenon to avoid the electric potential difference between user and environment that is triggered during contact, what we colloquially call getting a ‘shock’.
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