Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
095	REGISTERED NURSES	1,247	1,215
207	LICENSED PRACTICAL NURSES	1,098	1,051
223	BIOLOGICAL TECHNICIANS	212	176
225	SCIENCE TECHNICIANS, N.E.C.	206	159
447	NURSING AIDES, ORDERLIES, AND ATTENDANTS	815	666
453	JANITORS AND CLEANERS	312	48
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	356
633	SUPERVISORS, PRODUCTION OCCUPATIONS	333	333
688	FOOD BATCHMAKERS	747
754	PACKAGING AND FILLING MACHINE OPERATORS	317
756	MIXING AND BLENDING MACHINE OPERATORS	2,153	529
888	HAND PACKERS AND PACKAGERS	5,684	5,542
TOTAL		13,479	9,720

*(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.