Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
056	INDUSTRIAL ENGINEERS	65
379	GENERAL OFFICE CLERKS	11
453	JANITORS AND CLEANERS	7,472	58
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	108
516	HEAVY EQUIPMENT MECHANICS	1,506
518	INDUSTRIAL MACHINERY REPAIRERS	382
519	MACHINERY MAINTENANCE OCCUPATIONS	1,313
544	MILLWRIGHTS	949
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	16
549	NOT SPECIFIED MECHANICS AND REPAIRERS	562
575	ELECTRICIANS	62
637	MACHINISTS	2,124	351
689	INSPECTORS, TESTERS, AND GRADERS	139
695	POWER PLANT OPERATORS	207
696	STATIONARY ENGINEERS	11
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	80
707	ROLLING MACHINE OPERATORS	1,402	28
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	536	474
724	HEAT TREATING EQUIPMENT OPERATORS	579
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	6,095	84
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	5
779	MACHINE OPERATORS, NOT SPECIFIED	1,142
785	ASSEMBLERS	563	87
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	64
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	13
885	GARAGE AND SERVICE STATION RELATED OCCUPATIONS	1,252
889	LABORERS, EXCEPT CONSTRUCTION	11
TOTAL		26,669	1,082

*(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.