Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	131	11
098	INHALATION THERAPISTS	187	187
189	PHOTOGRAPHERS	988	197
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	284	262
449	MAIDS AND HOUSEMEN	911	911
453	JANITORS AND CLEANERS	925	613
469	PERSONAL SERVICE OCCUPATIONS, N.E.C.	164	92
633	SUPERVISORS, PRODUCTION OCCUPATIONS	74
735	PHOTOENGRAVERS AND LITHOGRAPHERS	29
736	TYPESETTERS AND COMPOSITORS	167
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	29
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	209	187
779	MACHINE OPERATORS, NOT SPECIFIED	1,962	54
889	LABORERS, EXCEPT CONSTRUCTION	471
TOTAL		6,529	2,515

*(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.