Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
363	PRODUCTION COORDINATORS	20
365	STOCK AND INVENTORY CLERKS	1,165
368	WEIGHERS, MEASURERS, AND CHECKERS	20
446	HEALTH AIDES, EXCEPT NURSING	26	26
453	JANITORS AND CLEANERS	113
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	1,307
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	1,449
596	SHEETMETAL DUCT INSTALLERS	419	17
597	STRUCTURAL METAL WORKERS	566
633	SUPERVISORS, PRODUCTION OCCUPATIONS	243
637	MACHINISTS	454
653	SHEET METAL WORKERS	86
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	259
708	DRILLING AND BORING MACHINE OPERATORS	437
756	MIXING AND BLENDING MACHINE OPERATORS	1,430	996
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	10	10
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	775
783	WELDERS AND CUTTERS	1,422
889	LABORERS, EXCEPT CONSTRUCTION	99
TOTAL		10,300	1,049

*(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.