Downloaded from https://www.everyspec.com MIL---STD---101C TABLE II. Classification of materials in piping systems ---Continued 9 Caustic potash, liquid (potassium hydroxide) Blue --------- Caustic soda, liquid (sodium hy- droxide) Blue --------- Chloracetyl chloride Blue --------- Chlorine Brown Green Chlorine trifluoride Brown Green Chloroacetone Brown Yellow Chlorosulfonic acid Blue Green Chloropicrin Brown --------- Chloropropane Yellow Blue Chromic acid solution Blue Green Coal gas (see manufactured gas) Yellow Brown Coal tar distillates, N.O.S. Yellow Brown Crotonaldehyde Blue Yellow Crude oil, petroleum Yellow --------- Cyanide, liquid (potassium solutions, sodium solutions), N.O.S.
Brown --------- Cyanogen gas Brown Yellow Cyclopropane Yellow Blue Decalin (decahydronaphthalene) Yellow --------- Dibromodifluoromethane Gray --------- Dibromodifluoromethane, fire Red --------- Dichloropentane Yellow --------- Diethanolamine Yellow --------- Diethylenetriamine Yellow --------- Difluorochloroethane Gray Yellow Difluoroethane Gray Yellow Diisobutyl ketone Blue Yellow Material Primary color warning Secondary color warning Dimethylamine, anhydrous Yellow Blue Dimethyl ether Yellow Brown