Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	1,171	57
224	CHEMICAL TECHNICIANS	2,513	432
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	103	52
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	52
453	JANITORS AND CLEANERS	1,378
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,079
567	CARPENTERS	6,427
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	1,257
595	ROOFERS	2,593
719	MOLDING AND CASTING MACHINE OPERATORS	597
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	112
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	2,550
753	CEMENTING AND GLUING MACHINE OPERATORS	96	58
755	EXTRUDING AND FORMING MACHINE OPERATORS	123
756	MIXING AND BLENDING MACHINE OPERATORS	4,052	38
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	48
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	95
769	SLICING AND CUTTING MACHINE OPERATORS	58
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,295	38
785	ASSEMBLERS	7
889	LABORERS, EXCEPT CONSTRUCTION	19
TOTAL		26,622	675

*(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.