Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	2,228	356
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	658
365	STOCK AND INVENTORY CLERKS	30
453	JANITORS AND CLEANERS	2,114	282
688	FOOD BATCHMAKERS	850	152
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	753
719	MOLDING AND CASTING MACHINE OPERATORS	1,317	94
754	PACKAGING AND FILLING MACHINE OPERATORS	1,826	1,217
756	MIXING AND BLENDING MACHINE OPERATORS	1,469
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,063	886
779	MACHINE OPERATORS, NOT SPECIFIED	743
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	113
TOTAL		13,164	2,988

*(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.