Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	141
719	MOLDING AND CASTING MACHINE OPERATORS	597
734	PRINTING MACHINE OPERATORS	753
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	1,283	837
753	CEMENTING AND GLUING MACHINE OPERATORS	96	58
769	SLICING AND CUTTING MACHINE OPERATORS	58
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,217
TOTAL		4,146	895

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.