Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
225	SCIENCE TECHNICIANS, N.E.C.	58
315	TYPISTS	72
453	JANITORS AND CLEANERS	86
544	MILLWRIGHTS	153
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	403
575	ELECTRICIANS	144
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	576
719	MOLDING AND CASTING MACHINE OPERATORS	1,506	55
756	MIXING AND BLENDING MACHINE OPERATORS	14
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	29
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	101
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	303
779	MACHINE OPERATORS, NOT SPECIFIED	2,606
783	WELDERS AND CUTTERS	72
889	LABORERS, EXCEPT CONSTRUCTION	354
TOTAL		6,478	55

*(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.