Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
217	DRAFTING OCCUPATIONS	89
453	JANITORS AND CLEANERS	4,934	64
505	AUTOMOBILE MECHANICS	256
516	HEAVY EQUIPMENT MECHANICS	305
518	INDUSTRIAL MACHINERY REPAIRERS	159
519	MACHINERY MAINTENANCE OCCUPATIONS	77
526	HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS	130	65
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	2,515
544	MILLWRIGHTS	1,144
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	2,339
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,260	39
575	ELECTRICIANS	1,009
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	4,529	159
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	2,019
597	STRUCTURAL METAL WORKERS	324
633	SUPERVISORS, PRODUCTION OCCUPATIONS	243
634	TOOL AND DIE MAKERS	273
637	MACHINISTS	6,595	127
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	56
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	935	49
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	260
704	LATHE AND TURNING MACHINE OPERATORS	1,421	187
705	MILLING AND PLANING MACHINE OPERATORS	1,030	11
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	843	114
708	DRILLING AND BORING MACHINE OPERATORS	485	32
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	851	101
717	FABRICATING MACHINE OPERATORS, N.E.C.	102
719	MOLDING AND CASTING MACHINE OPERATORS	308
723	METAL PLATING MACHINE OPERATORS	89
724	HEAT TREATING EQUIPMENT OPERATORS	89
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	154	16
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	122	16
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	49
769	SLICING AND CUTTING MACHINE OPERATORS	16
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	979	130
779	MACHINE OPERATORS, NOT SPECIFIED	20,670	4,904
783	WELDERS AND CUTTERS	2,327	254
784	SOLDERERS AND BRAZERS	6	6
785	ASSEMBLERS	9,587	2,616
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	263	84
797	PRODUCTION TESTERS	146	130
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	16
869	CONSTRUCTION LABORERS	607
888	HAND PACKERS AND PACKAGERS	406	260
889	LABORERS, EXCEPT CONSTRUCTION	1,055
TOTAL		72,070	9,363

*(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.