Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
634	TOOL AND DIE MAKERS	61
637	MACHINISTS	250
655	MISCELLANEOUS PRECISION METAL WORKERS	364
755	EXTRUDING AND FORMING MACHINE OPERATORS	26
783	WELDERS AND CUTTERS	128
TOTAL		829

*(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.