Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
335	FILE CLERKS	671	549
453	JANITORS AND CLEANERS	310	50
518	INDUSTRIAL MACHINERY REPAIRERS	121
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	232
696	STATIONARY ENGINEERS	644	106
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	6
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	17	17
719	MOLDING AND CASTING MACHINE OPERATORS	6,949	2,130
728	SHAPING AND JOINING MACHINE OPERATORS	1,954	1,042
755	EXTRUDING AND FORMING MACHINE OPERATORS	739	369
756	MIXING AND BLENDING MACHINE OPERATORS	163
769	SLICING AND CUTTING MACHINE OPERATORS	71	18
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,910	855
779	MACHINE OPERATORS, NOT SPECIFIED	1,531	289
785	ASSEMBLERS	11
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	17
TOTAL		15,344	5,424

*(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.