Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	80
453	JANITORS AND CLEANERS	564
518	INDUSTRIAL MACHINERY REPAIRERS	140
637	MACHINISTS	10
645	PATTERNMAKERS AND MODEL MAKERS, METAL	1,707	852
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	53
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	80
705	MILLING AND PLANING MACHINE OPERATORS	17
708	DRILLING AND BORING MACHINE OPERATORS	7
719	MOLDING AND CASTING MACHINE OPERATORS	1,201	104
769	SLICING AND CUTTING MACHINE OPERATORS	52
779	MACHINE OPERATORS, NOT SPECIFIED	1,720
785	ASSEMBLERS	431	299
889	LABORERS, EXCEPT CONSTRUCTION	264
TOTAL		6,326	1,256

*(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.