Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	73	40
235	TECHNICIANS, N.E.C.	12	12
453	JANITORS AND CLEANERS	831	278
469	PERSONAL SERVICE OCCUPATIONS, N.E.C.	164	92
538	OFFICE MACHINE REPAIRERS	431
549	NOT SPECIFIED MECHANICS AND REPAIRERS	102
734	PRINTING MACHINE OPERATORS	1,209	725
756	MIXING AND BLENDING MACHINE OPERATORS	70	23
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	111	28
TOTAL		3,003	1,199

*(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.