Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
078	BIOLOGICAL AND LIFE SCIENTISTS	89	89
223	BIOLOGICAL TECHNICIANS	3,263	1,048
235	TECHNICIANS, N.E.C.	89
435	WAITERS AND WAITRESSES	1,438	1,233
444	MISCELLANEOUS FOOD PREPARATION OCCUPATIONS	106	85
446	HEALTH AIDES, EXCEPT NURSING	427	176
453	JANITORS AND CLEANERS	249
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	356
549	NOT SPECIFIED MECHANICS AND REPAIRERS	988
687	BAKERS	1,496	205
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	357
754	PACKAGING AND FILLING MACHINE OPERATORS	1,124	320
756	MIXING AND BLENDING MACHINE OPERATORS	1,144	529
768	CRUSHING AND GRINDING MACHINE OPERATORS	176
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	570	106
878	MACHINE FEEDERS AND OFFBEARERS	213
888	HAND PACKERS AND PACKAGERS	1,378	865
889	LABORERS, EXCEPT CONSTRUCTION	616	616
TOTAL		14,081	5,274

*(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.