Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	392	149
105	THERAPISTS, N.E.C.	23	23
216	ENGINEERING TECHNICIANS, N.E.C.	93	37
224	CHEMICAL TECHNICIANS	2,228	356
225	SCIENCE TECHNICIANS, N.E.C.	53	53
453	JANITORS AND CLEANERS	891
549	NOT SPECIFIED MECHANICS AND REPAIRERS	202
575	ELECTRICIANS	44
756	MIXING AND BLENDING MACHINE OPERATORS	2,005
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	277	37
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	64
873	PRODUCTION HELPERS	94	30
888	HAND PACKERS AND PACKAGERS	276
TOTAL		6,642	687

*(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.