Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	71
616	MINING MACHINE OPERATORS	451
637	MACHINISTS	279
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	245
704	LATHE AND TURNING MACHINE OPERATORS	225
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	741
708	DRILLING AND BORING MACHINE OPERATORS	338
TOTAL		2,350

*(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.