Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
215	MECHANICAL ENGINEERING TECHNICIANS	58
216	ENGINEERING TECHNICIANS, N.E.C.	78	39
365	STOCK AND INVENTORY CLERKS	3
453	JANITORS AND CLEANERS	411
515	AIRCRAFT MECHANICS, EXC. ENGINE	62
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	9
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	329	34
753	CEMENTING AND GLUING MACHINE OPERATORS	31
755	EXTRUDING AND FORMING MACHINE OPERATORS	71
779	MACHINE OPERATORS, NOT SPECIFIED	1,275	1,215
785	ASSEMBLERS	368	213
797	PRODUCTION TESTERS	68
888	HAND PACKERS AND PACKAGERS	121	121
TOTAL		2,885	1,622

*(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.