Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	620	346
078	BIOLOGICAL AND LIFE SCIENTISTS	69	62
083	MEDICAL SCIENTISTS	130	130
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	4,469	3,530
216	ENGINEERING TECHNICIANS, N.E.C.	1,168	706
224	CHEMICAL TECHNICIANS	498	392
365	STOCK AND INVENTORY CLERKS	58
368	WEIGHERS, MEASURERS, AND CHECKERS	119
446	HEALTH AIDES, EXCEPT NURSING	3,397	2,809
453	JANITORS AND CLEANERS	574	138
633	SUPERVISORS, PRODUCTION OCCUPATIONS	117
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	438
754	PACKAGING AND FILLING MACHINE OPERATORS	58
756	MIXING AND BLENDING MACHINE OPERATORS	1,449
763	ROASTING AND BAKING MACHINE OPERATORS, FOOD	117
768	CRUSHING AND GRINDING MACHINE OPERATORS	1,170
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	175
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	119
878	MACHINE FEEDERS AND OFFBEARERS	58
TOTAL		14,806	8,114

*(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.