Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
083	MEDICAL SCIENTISTS	46	46
216	ENGINEERING TECHNICIANS, N.E.C.	1,977	1,412
223	BIOLOGICAL TECHNICIANS	4,505	1,880
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	502
453	JANITORS AND CLEANERS	2,709	154
516	HEAVY EQUIPMENT MECHANICS	164
633	SUPERVISORS, PRODUCTION OCCUPATIONS	933	144
686	BUTCHERS AND MEAT CUTTERS	9,736	7,122
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	59	29
754	PACKAGING AND FILLING MACHINE OPERATORS	456	46
755	EXTRUDING AND FORMING MACHINE OPERATORS	163
756	MIXING AND BLENDING MACHINE OPERATORS	1,150	529
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	39
768	CRUSHING AND GRINDING MACHINE OPERATORS	958
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	495	134
786	HAND CUTTING AND TRIMMING OCCUPATIONS	147	147
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,105	587
804	TRUCK DRIVERS, HEAVY	431
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	456	46
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	39
888	HAND PACKERS AND PACKAGERS	7,487	5,398
889	LABORERS, EXCEPT CONSTRUCTION	276
TOTAL		33,833	17,672

*(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.