Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	6
453	JANITORS AND CLEANERS	82
508	AIRCRAFT ENGINE MECHANICS	8,746	387
515	AIRCRAFT MECHANICS, EXC. ENGINE	1,697	21
645	PATTERNMAKERS AND MODEL MAKERS, METAL	1,857
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	9
723	METAL PLATING MACHINE OPERATORS	6	3
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	3,717	583
779	MACHINE OPERATORS, NOT SPECIFIED	15,233	4,352
785	ASSEMBLERS	766	217
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	11	3
TOTAL		32,129	5,565

*(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.