Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	133
453	JANITORS AND CLEANERS	1,952
503	SUPERVISORS, MECHANICS AND REPAIRERS	2,429
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	122
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	212
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	130
705	MILLING AND PLANING MACHINE OPERATORS	424
707	ROLLING MACHINE OPERATORS	106
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	4,824
713	FORGING MACHINE OPERATORS	637
724	HEAT TREATING EQUIPMENT OPERATORS	566
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	53
727	SAWING MACHINE OPERATORS	65
769	SLICING AND CUTTING MACHINE OPERATORS	318
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	224	159
779	MACHINE OPERATORS, NOT SPECIFIED	11,572	388
783	WELDERS AND CUTTERS	130
785	ASSEMBLERS	461
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	2,959
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	195
TOTAL		27,514	547

*(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.