It is to be kept in those campus facilities in which chemical carcinogens are stored or used. All campus personnel working with chemical carcinogens are required to have an understanding of the contents of the manual. The hazard categorization scheme is intended to reflect the net potential hazard associated with the conditions for use of each carcinogen. Specifically, it considers not only the apparent biological potency of a compound, but the total quantity or concentration in use. Thus, dilution of a Class C carcinogen may reduce its hazard to the Class B category.
Scientific evidence pertaining to the carcinogenic properties of chemicals change frequently.
See the Guide for Chemical Carcinogen Classification . Chemicals regulated by law. Chemicals not regulated by law but considered to be highly hazardous by the Chemical Safety Committee. Chemicals identified in OSHA and other guidelines which do not exceed the hazardous category in any concentration. Other chemicals when used in research and teaching activities that could, on the basis of new information, require the restrictions listed for this category.