Claim: The corrosive class involves acids along with bases, which involves liquids or solids as well as liquids that cause severe corrosion on steel, and should be cautioned when shipping to ensure no mixing happens.
Evidence: Although the corrosive class includes both acids and bases, the hazardous materials load and segregation chart does not make any reference to the separation of various incompatible corrosive materials from each other. A corrosive material is a liquid or solid that causes full thickness destruction of human skin at the site of contact within a specified period of time. A liquid that has a severe corrosion rate on steel or aluminum based on the criteria in 49CFR 173.137(c)(2) is also a corrosive material. If responding to a transportation incident involving corrosive materials (especially a mixture of corrosives), caution should be exercised.