Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	6
078	BIOLOGICAL AND LIFE SCIENTISTS	36	12
224	CHEMICAL TECHNICIANS	977	154
235	TECHNICIANS, N.E.C.	6
449	MAIDS AND HOUSEMEN	888	509
453	JANITORS AND CLEANERS	448
496	TIMBER CUTTING AND LOGGING OCCUPATIONS	397	227
544	MILLWRIGHTS	45
567	CARPENTERS	397	227
647	PRECIOUS STONES AND METALS WORKERS (JEWELERS)	765
734	PRINTING MACHINE OPERATORS	49	4
756	MIXING AND BLENDING MACHINE OPERATORS	9
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	130
768	CRUSHING AND GRINDING MACHINE OPERATORS	452	49
TOTAL		4,605	1,182

*(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.