Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
105	THERAPISTS, N.E.C.	219	219
216	ENGINEERING TECHNICIANS, N.E.C.	175	11
225	SCIENCE TECHNICIANS, N.E.C.	627
235	TECHNICIANS, N.E.C.	248
243	SUPERVISORS AND PROPRIETORS, SALES OCCUPATIONS	633	203
373	EXPEDITERS	69
453	JANITORS AND CLEANERS	2,566
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	351
544	MILLWRIGHTS	153
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	150
565	TILE SETTERS, HARD AND SOFT	2,056
567	CARPENTERS	352
575	ELECTRICIANS	226
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	4,087
633	SUPERVISORS, PRODUCTION OCCUPATIONS	266
637	MACHINISTS	1,612	11
647	PRECIOUS STONES AND METALS WORKERS (JEWELERS)	183
653	SHEET METAL WORKERS	387
657	CABINET MAKERS AND BENCH CARPENTERS	565	151
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	1,498	268
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	101	6
719	MOLDING AND CASTING MACHINE OPERATORS	416	249
733	MISCELLANEOUS WOODWORKING MACHINE OPERATORS	72
753	CEMENTING AND GLUING MACHINE OPERATORS	3,371
756	MIXING AND BLENDING MACHINE OPERATORS	416	199
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	69
768	CRUSHING AND GRINDING MACHINE OPERATORS	3,198	396
769	SLICING AND CUTTING MACHINE OPERATORS	1,610	933
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	4,284	466
783	WELDERS AND CUTTERS	1,002
785	ASSEMBLERS	4,695	1,049
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	771	75
797	PRODUCTION TESTERS	72
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,344
877	STOCK HANDLERS AND BAGGERS	77
889	LABORERS, EXCEPT CONSTRUCTION	617
TOTAL		38,539	4,238

*(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.