Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
223	BIOLOGICAL TECHNICIANS	3,351	1,136
435	WAITERS AND WAITRESSES	1,438	1,233
486	GROUNDSKEEPERS AND GARDENERS, EXCEPT FARM	82
633	SUPERVISORS, PRODUCTION OCCUPATIONS	457	114
686	BUTCHERS AND MEAT CUTTERS	2,214	374
687	BAKERS	1,238	231
754	PACKAGING AND FILLING MACHINE OPERATORS	666	199
756	MIXING AND BLENDING MACHINE OPERATORS	3,923	936
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	1,524
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	711	118
878	MACHINE FEEDERS AND OFFBEARERS	3,545	457
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	189
888	HAND PACKERS AND PACKAGERS	1,198	706
889	LABORERS, EXCEPT CONSTRUCTION	792	616
TOTAL		21,328	6,122

*(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.