Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
189	PHOTOGRAPHERS	68	17
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	181	56
206	RADIOLOGIC TECHNICIANS	305	203
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	754	84
216	ENGINEERING TECHNICIANS, N.E.C.	954	21
224	CHEMICAL TECHNICIANS	3,266	502
225	SCIENCE TECHNICIANS, N.E.C.	24
235	TECHNICIANS, N.E.C.	991	119
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	1,462
735	PHOTOENGRAVERS AND LITHOGRAPHERS	1,026	91
889	LABORERS, EXCEPT CONSTRUCTION	32	8
TOTAL		9,063	1,100

*(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.