Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	96	32
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	100	78
216	ENGINEERING TECHNICIANS, N.E.C.	116	39
224	CHEMICAL TECHNICIANS	6
225	SCIENCE TECHNICIANS, N.E.C.	356	44
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	80
365	STOCK AND INVENTORY CLERKS	134
453	JANITORS AND CLEANERS	4,481	98
518	INDUSTRIAL MACHINERY REPAIRERS	119
544	MILLWRIGHTS	1,130
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	1,228
549	NOT SPECIFIED MECHANICS AND REPAIRERS	206
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	18
633	SUPERVISORS, PRODUCTION OCCUPATIONS	562
634	TOOL AND DIE MAKERS	671
637	MACHINISTS	30,247	549
639	MACHINIST APPRENTICES	139
649	ENGRAVERS, METAL	642	128
653	SHEET METAL WORKERS	128
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	597
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	7,382	306
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	1,986	57
704	LATHE AND TURNING MACHINE OPERATORS	5,291	119
705	MILLING AND PLANING MACHINE OPERATORS	4,441
708	DRILLING AND BORING MACHINE OPERATORS	1,180	213
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	2,524	196
714	NUMERICAL CONTROL MACHINE OPERATORS	89
719	MOLDING AND CASTING MACHINE OPERATORS	674	75
723	METAL PLATING MACHINE OPERATORS	41
769	SLICING AND CUTTING MACHINE OPERATORS	2,745	306
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,377	23
779	MACHINE OPERATORS, NOT SPECIFIED	14,353	1,151
783	WELDERS AND CUTTERS	465
785	ASSEMBLERS	5,450	52
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	247	64
869	CONSTRUCTION LABORERS	79
873	PRODUCTION HELPERS	238
TOTAL		89,620	3,531

*(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.