Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	242
453	JANITORS AND CLEANERS	69
549	NOT SPECIFIED MECHANICS AND REPAIRERS	554
558	SUPERVISORS, N.E.C.	560
565	TILE SETTERS, HARD AND SOFT	2,056
704	LATHE AND TURNING MACHINE OPERATORS	1,662
719	MOLDING AND CASTING MACHINE OPERATORS	762
756	MIXING AND BLENDING MACHINE OPERATORS	278
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	417	209
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	876	11
779	MACHINE OPERATORS, NOT SPECIFIED	1,275	1,215
785	ASSEMBLERS	30	30
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	282	221
869	CONSTRUCTION LABORERS	3,080
888	HAND PACKERS AND PACKAGERS	121	121
TOTAL		12,266	1,807

*(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.