Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
074	ATMOSPHERIC AND SPACE SCIENTISTS	22
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	7	7
216	ENGINEERING TECHNICIANS, N.E.C.	32
453	JANITORS AND CLEANERS	110
515	AIRCRAFT MECHANICS, EXC. ENGINE	1,657
549	NOT SPECIFIED MECHANICS AND REPAIRERS	185
689	INSPECTORS, TESTERS, AND GRADERS	58	22
717	FABRICATING MACHINE OPERATORS, N.E.C.	57
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	40
779	MACHINE OPERATORS, NOT SPECIFIED	263
785	ASSEMBLERS	28
TOTAL		2,457	29

*(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.