Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	100	78
216	ENGINEERING TECHNICIANS, N.E.C.	116	39
235	TECHNICIANS, N.E.C.	33
365	STOCK AND INVENTORY CLERKS	247
453	JANITORS AND CLEANERS	3,436	18
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	1,600
516	HEAVY EQUIPMENT MECHANICS	670
518	INDUSTRIAL MACHINERY REPAIRERS	591
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	1,659
544	MILLWRIGHTS	419
549	NOT SPECIFIED MECHANICS AND REPAIRERS	777
575	ELECTRICIANS	35
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	18
596	SHEETMETAL DUCT INSTALLERS	2,450
633	SUPERVISORS, PRODUCTION OCCUPATIONS	642
634	TOOL AND DIE MAKERS	321
637	MACHINISTS	33,587	1,360
639	MACHINIST APPRENTICES	139
649	ENGRAVERS, METAL	642	128
653	SHEET METAL WORKERS	128
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	966
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	1,214
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	467
704	LATHE AND TURNING MACHINE OPERATORS	710
705	MILLING AND PLANING MACHINE OPERATORS	1,762
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	2,390	190
708	DRILLING AND BORING MACHINE OPERATORS	435	326
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	532	179
713	FORGING MACHINE OPERATORS	308
717	FABRICATING MACHINE OPERATORS, N.E.C.	1,318
719	MOLDING AND CASTING MACHINE OPERATORS	2,000	249
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	87
726	WOOD LATHE, ROUTING, AND PLANING MACHINE OPERATORS	64
727	SAWING MACHINE OPERATORS	1,437
734	PRINTING MACHINE OPERATORS	911
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	464	77
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	192
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,450	138
779	MACHINE OPERATORS, NOT SPECIFIED	12,778	474
783	WELDERS AND CUTTERS	1,603
785	ASSEMBLERS	1,514	428
797	PRODUCTION TESTERS	154
799	GRADERS AND SORTERS, EXCEPT AGRICULTURAL	235
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	193
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	231
869	CONSTRUCTION LABORERS	79
873	PRODUCTION HELPERS	238
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	23
889	LABORERS, EXCEPT CONSTRUCTION	1,824
TOTAL		84,192	3,683

*(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.