Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
646	LAY-OUT WORKERS	5
677	OPTICAL GOODS WORKERS	107
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	107	107
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	30	19
779	MACHINE OPERATORS, NOT SPECIFIED	19	19
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	12	12
TOTAL		278	155

*(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.