Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	150	86
453	JANITORS AND CLEANERS	151
633	SUPERVISORS, PRODUCTION OCCUPATIONS	70
679	BOOKBINDERS	371	110
748	LAUNDERING AND DRY CLEANING MACHINE OPERATORS	175
753	CEMENTING AND GLUING MACHINE OPERATORS	153
756	MIXING AND BLENDING MACHINE OPERATORS	6,405	436
TOTAL		7,475	632

*(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.