Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
217	DRAFTING OCCUPATIONS	89
453	JANITORS AND CLEANERS	267
518	INDUSTRIAL MACHINERY REPAIRERS	159
634	TOOL AND DIE MAKERS	273
637	MACHINISTS	1,069
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	886
705	MILLING AND PLANING MACHINE OPERATORS	891
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	92
723	METAL PLATING MACHINE OPERATORS	89
724	HEAT TREATING EQUIPMENT OPERATORS	89
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	89
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	89
779	MACHINE OPERATORS, NOT SPECIFIED	16,710	4,693
783	WELDERS AND CUTTERS	178
785	ASSEMBLERS	259
889	LABORERS, EXCEPT CONSTRUCTION	1,055
TOTAL		22,284	4,693

*(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.