Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
217	DRAFTING OCCUPATIONS	374	13
365	STOCK AND INVENTORY CLERKS	19
453	JANITORS AND CLEANERS	1,731
518	INDUSTRIAL MACHINERY REPAIRERS	639
519	MACHINERY MAINTENANCE OCCUPATIONS	137
544	MILLWRIGHTS	687
549	NOT SPECIFIED MECHANICS AND REPAIRERS	247
575	ELECTRICIANS	639
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	522
633	SUPERVISORS, PRODUCTION OCCUPATIONS	80
634	TOOL AND DIE MAKERS	383	6
637	MACHINISTS	14,677	361
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	1,055
696	STATIONARY ENGINEERS	96
704	LATHE AND TURNING MACHINE OPERATORS	57
705	MILLING AND PLANING MACHINE OPERATORS	2,242	1,116
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	205	40
708	DRILLING AND BORING MACHINE OPERATORS	354
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	363
719	MOLDING AND CASTING MACHINE OPERATORS	139
724	HEAT TREATING EQUIPMENT OPERATORS	18
769	SLICING AND CUTTING MACHINE OPERATORS	159
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,237	342
779	MACHINE OPERATORS, NOT SPECIFIED	2,155	10
783	WELDERS AND CUTTERS	200
785	ASSEMBLERS	3,113
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	123
873	PRODUCTION HELPERS	263
889	LABORERS, EXCEPT CONSTRUCTION	27
TOTAL		32,942	1,888

*(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.