Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	433	173
214	INDUSTRIAL ENGINEERING TECHNICIANS	14
224	CHEMICAL TECHNICIANS	3,969	1,701
235	TECHNICIANS, N.E.C.	512	183
356	MAIL CLERKS, EXC. POSTAL SERVICE	1,226	350
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	164
368	WEIGHERS, MEASURERS, AND CHECKERS	33
453	JANITORS AND CLEANERS	11,967	350
505	AUTOMOBILE MECHANICS	2,412
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	951
514	AUTOMOBILE BODY AND RELATED REPAIRERS	1,536
516	HEAVY EQUIPMENT MECHANICS	858
518	INDUSTRIAL MACHINERY REPAIRERS	2,046
519	MACHINERY MAINTENANCE OCCUPATIONS	761
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	6
544	MILLWRIGHTS	212
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	461
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,343
575	ELECTRICIANS	639
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	4,950	3
594	PAVING, SURFACING, AND TAMPING EQUIPMENT OPERATORS	137
596	SHEETMETAL DUCT INSTALLERS	951
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,615
634	TOOL AND DIE MAKERS	2,068	13
637	MACHINISTS	2,544
639	MACHINIST APPRENTICES	139
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	203
678	DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS	948	316
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	232	58
689	INSPECTORS, TESTERS, AND GRADERS	144
696	STATIONARY ENGINEERS	11
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	112
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	6
724	HEAT TREATING EQUIPMENT OPERATORS	35
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	2,548	158
754	PACKAGING AND FILLING MACHINE OPERATORS	1,147	478
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	63
765	FOLDING MACHINE OPERATORS	1,878	683
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	264	27
769	SLICING AND CUTTING MACHINE OPERATORS	256
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	828	47
779	MACHINE OPERATORS, NOT SPECIFIED	590
783	WELDERS AND CUTTERS	3,118	31
784	SOLDERERS AND BRAZERS	1,064	999
785	ASSEMBLERS	972	108
795	MISCELLANEOUS HAND WORKING OCCUPATIONS	295
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,626	610
797	PRODUCTION TESTERS	58
798	PRODUCTION SAMPLERS AND WEIGHERS	128
804	TRUCK DRIVERS, HEAVY	3,407
844	OPERATING ENGINEERS	161
853	EXCAVATING AND LOADING MACHINE OPERATORS	781
855	GRADER, DOZER, AND SCRAPER OPERATORS	468
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	679
885	GARAGE AND SERVICE STATION RELATED OCCUPATIONS	2,042
888	HAND PACKERS AND PACKAGERS	9,492	8,654
889	LABORERS, EXCEPT CONSTRUCTION	2,612	138
TOTAL		78,116	15,080

*(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.