Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
313	SECRETARIES	2,541	1,301
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	471	75
379	GENERAL OFFICE CLERKS	989
453	JANITORS AND CLEANERS	156
689	INSPECTORS, TESTERS, AND GRADERS	10
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	1,172
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,481
779	MACHINE OPERATORS, NOT SPECIFIED	27
888	HAND PACKERS AND PACKAGERS	404	339
889	LABORERS, EXCEPT CONSTRUCTION	938
TOTAL		8,189	1,715

*(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.