Downloaded from https://www.everyspec.com MIL---STD---101C TABLE II.
Classification of materials in piping systems ---Continued 8 Benzene (benzol, coal tar light oil) Yellow Brown Benzine (petroleum ether, petro- leum naphtha) Yellow --------- Benzoyl chloride Blue --------- Benzyl chloride Blue Yellow Boron hydrides (alkyl decaborane, alkyl pentaborane, diborane, dihy- drotetraborane, hexaborane, penta- borane, and N.O.S.) Brown Yellow Boron trichloride Brown --------- Boron trifluoride Brown Gray Bromine Brown Green Bromine pentafluoride Brown Green Bromine trifluoride Brown Green Bromoacetone Brown --------- Bromobenzene Yellow --------- Bromochloromethane Brown Gray Bromochloromethane, fire Red Brown Bromotrifluoromethane Gray --------- Bromotrifluoromethane, fire Red --------- Butadiene Yellow --------- Butane (see petroleum gas) Yellow --------- Butyl acetate Yellow --------- Butyl ether Yellow --------- Camphor oil Yellow --------- Carbon bisulfide (carbon disulfide) Yellow Brown Carbon dioxide Gray --------- Carbon dioxide, fire Red --------- Material Primary color warning Secondary color warning Carbon monoxide Yellow Brown Carbon tetrachloride Brown Blue