Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	639	145
216	ENGINEERING TECHNICIANS, N.E.C.	134	134
365	STOCK AND INVENTORY CLERKS	58
368	WEIGHERS, MEASURERS, AND CHECKERS	726
453	JANITORS AND CLEANERS	606	296
454	ELEVATOR OPERATORS	363
487	ANIMAL CARETAKERS, EXCEPT FARM	473	86
519	MACHINERY MAINTENANCE OCCUPATIONS	363
549	NOT SPECIFIED MECHANICS AND REPAIRERS	363
633	SUPERVISORS, PRODUCTION OCCUPATIONS	423
754	PACKAGING AND FILLING MACHINE OPERATORS	58
756	MIXING AND BLENDING MACHINE OPERATORS	2,523
763	ROASTING AND BAKING MACHINE OPERATORS, FOOD	117
768	CRUSHING AND GRINDING MACHINE OPERATORS	2,408
779	MACHINE OPERATORS, NOT SPECIFIED	2,606
804	TRUCK DRIVERS, HEAVY	743
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	175
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	363
878	MACHINE FEEDERS AND OFFBEARERS	58
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	2,541
888	HAND PACKERS AND PACKAGERS	1,131	406
889	LABORERS, EXCEPT CONSTRUCTION	363
TOTAL		17,236	1,067

*(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.