Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	443	108
368	WEIGHERS, MEASURERS, AND CHECKERS	119
379	GENERAL OFFICE CLERKS	69
453	JANITORS AND CLEANERS	5,490	2,189
518	INDUSTRIAL MACHINERY REPAIRERS	590
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,087
575	ELECTRICIANS	87
634	TOOL AND DIE MAKERS	2,680
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	636
689	INSPECTORS, TESTERS, AND GRADERS	149
734	PRINTING MACHINE OPERATORS	1,153	54
744	TEXTILE SEWING MACHINE OPERATORS	984	303
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	721	141
755	EXTRUDING AND FORMING MACHINE OPERATORS	89	14
756	MIXING AND BLENDING MACHINE OPERATORS	6,114	336
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	270
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	467
768	CRUSHING AND GRINDING MACHINE OPERATORS	172
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,354	236
783	WELDERS AND CUTTERS	1,780
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	485	162
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	950	263
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	119
864	HELPERS, MECHANICS AND REPAIRERS	1,254
878	MACHINE FEEDERS AND OFFBEARERS	216
889	LABORERS, EXCEPT CONSTRUCTION	6,781
TOTAL		36,261	3,806

*(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.