Downloaded from https://www.everyspec.com MIL---STD---101C TABLE II. Classification of materials in piping systems TABLE II. Classification of materials in piping systems ---Continued 7 Material Primary color warning Secondary color warning Acetaldehyde Yellow Blue Acetic acid, aqueous solution Blue Yellow Acetic acid, glacial Blue Yellow Acetic anhydride Blue Yellow Acetone Yellow --------- Acetone oils Yellow --------- Acetyl chloride Blue --------- Acetylene Yellow --------- Acid, liquid, N.O.S.
Blue --------- Acrolein Brown Yellow Acrylonitrile Yellow Brown Aerosol insecticide Gray --------- Air, compressed Gray Green Alcohol, allyl, liquid Yellow Brown Alcohol, amyl, butyl, ethyl, propyl, N.O.S. Yellow --------- Alcohol, methyl Yellow Blue Alkaline corrosive liquids, N.O.S. Blue --------- Aluminum borohydride Yellow Brown Ammonia, anhydrous Brown Yellow Amyl acetate Yellow --------- Aniline (oil), liquid Brown Yellow Argon Gray --------- Argon---oxygen mixture Green --------- Material Primary color warning Secondary color warning Arsenic trichloride Brown Blue Material Primary Color Secondary Color Warning Arsenical acids and Liquids, N.O.S.
Brown Blue Benzaldehyde Yellow ---------