Resistance of Nitrile Gloves to Permeation by Chemical - EN 374-I Chemical Mean Break Through Class Acetic Acid 4 min. 0 Acetone 1 min. 0 Amyl Acetate 4 Min. 0 Butanoi 34 min. 2 Butyl Acetate 3 min. 0 Carbon Tetrachloride 5 min. 0 Chloroform 1 min. 0 Ethanol 14 min. 1 Ethyl Acetate 1 min. 0 Gasline/ Unleaded Petrol 22 min. 1 Heptane 32 min. 2 Hexane 31 min. 2 Hydrochloric Acid, 37% 169 min. 4 Methanol 5 min. 0 Methyl Ethyl Ketone 1 min. 0 Methyl Isobutyl Ketone 2 min. 0 Methyl Methacrylate 1 min. 0 Methylene Chloride 1 Min. 0 Nitric Acid, 70% 5 min. 0 Pentane 18 min. 1 Petroleum Ether 33 min. 2 Phosphoric Acid >480 min. 6 Potassium Hydroxide, 45% >480 min. 6 2-Propanol >39 min. 2 n-Propanol 26 min. 1 Sodium Hydroxide, 50% >48 min. 6 Stoddard Solvent 55 min. 2 Sulphuric Acid, 97% 6 min. 0 Toluene 1 min. 0 Cylene 2 min. 0 Note: EN 374-1 Breakthrough Time Classification: a) Class 0 < or 10 min b) Class 1 > 10 min c) Class 2 > 30 min d) Class 3 > 60 min (1Hr) e) Class 4 > 120 min (2Hr) f) Class 5 > 240 min (4Hr) g) Class 6 > 480 min (8Hr)