Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
677	OPTICAL GOODS WORKERS	826	426
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	196	85
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	116	57
TOTAL		1,139	568

*(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.