Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
083	MEDICAL SCIENTISTS	46	46
223	BIOLOGICAL TECHNICIANS	730	319
224	CHEMICAL TECHNICIANS	844	119
225	SCIENCE TECHNICIANS, N.E.C.	185	12
235	TECHNICIANS, N.E.C.	977	112
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	1,499
365	STOCK AND INVENTORY CLERKS	58
453	JANITORS AND CLEANERS	1,017	275
487	ANIMAL CARETAKERS, EXCEPT FARM	258	86
575	ELECTRICIANS	5,307
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	44
633	SUPERVISORS, PRODUCTION OCCUPATIONS	365
754	PACKAGING AND FILLING MACHINE OPERATORS	515	46
755	EXTRUDING AND FORMING MACHINE OPERATORS	405
756	MIXING AND BLENDING MACHINE OPERATORS	1,699
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	197	4
763	ROASTING AND BAKING MACHINE OPERATORS, FOOD	117
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	7	5
768	CRUSHING AND GRINDING MACHINE OPERATORS	3,275
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	788	46
779	MACHINE OPERATORS, NOT SPECIFIED	2,606
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	175
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	548	46
877	STOCK HANDLERS AND BAGGERS	782
878	MACHINE FEEDERS AND OFFBEARERS	58
889	LABORERS, EXCEPT CONSTRUCTION	575
TOTAL		23,077	1,113

*(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.