Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
335	FILE CLERKS	553	484
365	STOCK AND INVENTORY CLERKS	196	13
453	JANITORS AND CLEANERS	1,055
549	NOT SPECIFIED MECHANICS AND REPAIRERS	466
575	ELECTRICIANS	145
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,120	83
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	18	18
696	STATIONARY ENGINEERS	512
717	FABRICATING MACHINE OPERATORS, N.E.C.	63	13
719	MOLDING AND CASTING MACHINE OPERATORS	14,599	10,369
755	EXTRUDING AND FORMING MACHINE OPERATORS	2,263	1,638
768	CRUSHING AND GRINDING MACHINE OPERATORS	25	6
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,790	2,732
779	MACHINE OPERATORS, NOT SPECIFIED	1,239	330
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,675	1,675
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	289
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,600
TOTAL		28,608	17,360

*(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.