Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	20
215	MECHANICAL ENGINEERING TECHNICIANS	1,106	24
216	ENGINEERING TECHNICIANS, N.E.C.	235	24
235	TECHNICIANS, N.E.C.	14
365	STOCK AND INVENTORY CLERKS	604
453	JANITORS AND CLEANERS	12,342	112
505	AUTOMOBILE MECHANICS	1,502
516	HEAVY EQUIPMENT MECHANICS	2,362
518	INDUSTRIAL MACHINERY REPAIRERS	5,562	18
519	MACHINERY MAINTENANCE OCCUPATIONS	14
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	117
544	MILLWRIGHTS	1,106
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	1,362
549	NOT SPECIFIED MECHANICS AND REPAIRERS	8,831	25
567	CARPENTERS	62
575	ELECTRICIANS	997
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	2,045
597	STRUCTURAL METAL WORKERS	4,145	10
634	TOOL AND DIE MAKERS	427
636	PRECISION ASSEMBLERS, METAL	16
637	MACHINISTS	10,514	34
643	BOILERMAKERS	65
649	ENGRAVERS, METAL	18
653	SHEET METAL WORKERS	4,167
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	1,264
696	STATIONARY ENGINEERS	362
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	20
708	DRILLING AND BORING MACHINE OPERATORS	166
713	FORGING MACHINE OPERATORS	271
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	28
734	PRINTING MACHINE OPERATORS	544	31
735	PHOTOENGRAVERS AND LITHOGRAPHERS	18
736	TYPESETTERS AND COMPOSITORS	13
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	149	27
769	SLICING AND CUTTING MACHINE OPERATORS	234	18
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	76
779	MACHINE OPERATORS, NOT SPECIFIED	3,104
783	WELDERS AND CUTTERS	2,615
785	ASSEMBLERS	1,548
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	133
804	TRUCK DRIVERS, HEAVY	5,762
873	PRODUCTION HELPERS	180
877	STOCK HANDLERS AND BAGGERS	22	5
888	HAND PACKERS AND PACKAGERS	808	419
TOTAL		74,949	747

*(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.