Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	1,254
633	SUPERVISORS, PRODUCTION OCCUPATIONS	238
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	492	194
719	MOLDING AND CASTING MACHINE OPERATORS	307
745	SHOE MACHINE OPERATORS	2,193	1,571
755	EXTRUDING AND FORMING MACHINE OPERATORS	82
756	MIXING AND BLENDING MACHINE OPERATORS	130
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	34
769	SLICING AND CUTTING MACHINE OPERATORS	604
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	4,083	80
779	MACHINE OPERATORS, NOT SPECIFIED	78
785	ASSEMBLERS	3,467	1,024
798	PRODUCTION SAMPLERS AND WEIGHERS	68
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	34
889	LABORERS, EXCEPT CONSTRUCTION	678
TOTAL		13,744	2,869

*(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.