Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
223	BIOLOGICAL TECHNICIANS	237
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	643	57
365	STOCK AND INVENTORY CLERKS	30
453	JANITORS AND CLEANERS	350	57
688	FOOD BATCHMAKERS	823
754	PACKAGING AND FILLING MACHINE OPERATORS	1,826	1,217
756	MIXING AND BLENDING MACHINE OPERATORS	30
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	1,030	57
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	471
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	71
TOTAL		5,512	1,387

*(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.