Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
335	FILE CLERKS	27
453	JANITORS AND CLEANERS	1,396
505	AUTOMOBILE MECHANICS	11
514	AUTOMOBILE BODY AND RELATED REPAIRERS	22
519	MACHINERY MAINTENANCE OCCUPATIONS	22
567	CARPENTERS	58
575	ELECTRICIANS	65
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	115
633	SUPERVISORS, PRODUCTION OCCUPATIONS	65
636	PRECISION ASSEMBLERS, METAL	16
637	MACHINISTS	72
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	845
744	TEXTILE SEWING MACHINE OPERATORS	6,489	5,325
783	WELDERS AND CUTTERS	27
785	ASSEMBLERS	192	77
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	60
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	109
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	687
869	CONSTRUCTION LABORERS	4,202
TOTAL		14,481	5,402

*(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.