Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	282
719	MOLDING AND CASTING MACHINE OPERATORS	4,223
756	MIXING AND BLENDING MACHINE OPERATORS	252
888	HAND PACKERS AND PACKAGERS	617	617
889	LABORERS, EXCEPT CONSTRUCTION	2,886	351
TOTAL		8,260	967

*(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.