Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	190
453	JANITORS AND CLEANERS	944
508	AIRCRAFT ENGINE MECHANICS	6,707	57
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	179	14
679	BOOKBINDERS	462	231
719	MOLDING AND CASTING MACHINE OPERATORS	1,169
734	PRINTING MACHINE OPERATORS	4,927	180
756	MIXING AND BLENDING MACHINE OPERATORS	77
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	1,668
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	796
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	687	46
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	285
TOTAL		18,090	528

*(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.