Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	1,327	1,327
505	AUTOMOBILE MECHANICS	2,197
515	AIRCRAFT MECHANICS, EXC. ENGINE	567	21
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	76	62
567	CARPENTERS	1,199
575	ELECTRICIANS	41
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	123
678	DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS	21
719	MOLDING AND CASTING MACHINE OPERATORS	7
723	METAL PLATING MACHINE OPERATORS	10
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	233	39
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	159
779	MACHINE OPERATORS, NOT SPECIFIED	9
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	9	4
TOTAL		5,979	1,454

*(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.