Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	322
083	MEDICAL SCIENTISTS	46	46
216	ENGINEERING TECHNICIANS, N.E.C.	1,977	1,412
223	BIOLOGICAL TECHNICIANS	2,372	1,774
453	JANITORS AND CLEANERS	3,626	443
633	SUPERVISORS, PRODUCTION OCCUPATIONS	33
687	BAKERS	1,624	162
688	FOOD BATCHMAKERS	1,318	54
696	STATIONARY ENGINEERS	130
754	PACKAGING AND FILLING MACHINE OPERATORS	113
756	MIXING AND BLENDING MACHINE OPERATORS	1,204	529
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	710
769	SLICING AND CUTTING MACHINE OPERATORS	1,020	430
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	5,198	2,188
779	MACHINE OPERATORS, NOT SPECIFIED	1,183
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,047	269
873	PRODUCTION HELPERS	761
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	161
888	HAND PACKERS AND PACKAGERS	2,033	857
889	LABORERS, EXCEPT CONSTRUCTION	591	322
TOTAL		25,467	8,486

*(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.