A - little or no action B - moderate action C - strong action S - unknown FLUID OR MATERIAL CONVEYED NR NBR EPDM HYPALON® Ethanol A A A A Ethanol amine B B A C Ethyl acetate C C S C Ethyl acetoacetate C C S C Ethyl acetone C C S C Ethyl acrylate C C S C Ethyl Al dichloride C S S S Ethyl aldehyde S S B S Ethyl amine S S B S Ethyl benzene C B/C C C Ethyl bromide C B/C C S Ethyl butyl acetate C S B S Ethyl butyl alcohol A/B A/B A A Ethyl butyl amine B B A/B B Ethyl butyl ketone C S B B Ethyl butyrate C S S S Ethyl cellulose B S B B Ethyl chloride C S C S Ethyl dichloride C S C S Ethyl ether C S S S Ethyl formate C S S C Ethyl iodide C S S S Ethyl phthalate S S S S Ethylbutyraldehyde C S S C Ethylene chlorohydrine B/C C S B Ethylene diamine B S A/B B Ethylene dibromide C S C C Ethylene dichloride C S C C Ethylene glycol A A A A Ethylene oxide gas S S C S