Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	44
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	103	52
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	52
453	JANITORS AND CLEANERS	1,665
503	SUPERVISORS, MECHANICS AND REPAIRERS	65
514	AUTOMOBILE BODY AND RELATED REPAIRERS	55
515	AIRCRAFT MECHANICS, EXC. ENGINE	567	21
575	ELECTRICIANS	218
633	SUPERVISORS, PRODUCTION OCCUPATIONS	65
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	44
753	CEMENTING AND GLUING MACHINE OPERATORS	27
756	MIXING AND BLENDING MACHINE OPERATORS	439
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	406
783	WELDERS AND CUTTERS	217	31
785	ASSEMBLERS	1,863	179
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	109
TOTAL		5,939	282

*(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.