Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	26
216	ENGINEERING TECHNICIANS, N.E.C.	135
357	MESSENGERS	278
453	JANITORS AND CLEANERS	281	7
519	MACHINERY MAINTENANCE OCCUPATIONS	271
575	ELECTRICIANS	338
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	433
647	PRECIOUS STONES AND METALS WORKERS (JEWELERS)	145
653	SHEET METAL WORKERS	88
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	315
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	156
719	MOLDING AND CASTING MACHINE OPERATORS	3,216	1,662
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	949	79
753	CEMENTING AND GLUING MACHINE OPERATORS	616
755	EXTRUDING AND FORMING MACHINE OPERATORS	702	65
756	MIXING AND BLENDING MACHINE OPERATORS	2,208	270
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	54
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	202
769	SLICING AND CUTTING MACHINE OPERATORS	581	58
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	4,121	309
779	MACHINE OPERATORS, NOT SPECIFIED	119
783	WELDERS AND CUTTERS	102
785	ASSEMBLERS	1,923	932
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	366	29
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	156
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	78
873	PRODUCTION HELPERS	108
878	MACHINE FEEDERS AND OFFBEARERS	88
TOTAL		18,053	3,410

*(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.