Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
223	BIOLOGICAL TECHNICIANS	299	264
444	MISCELLANEOUS FOOD PREPARATION OCCUPATIONS	200	18
453	JANITORS AND CLEANERS	298
458	HAIRDRESSERS AND COSMETOLOGISTS	2,982	2,650
633	SUPERVISORS, PRODUCTION OCCUPATIONS	293
686	BUTCHERS AND MEAT CUTTERS	2,214	374
735	PHOTOENGRAVERS AND LITHOGRAPHERS	76
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	90	23
754	PACKAGING AND FILLING MACHINE OPERATORS	1,192	375
756	MIXING AND BLENDING MACHINE OPERATORS	6,064	1,001
768	CRUSHING AND GRINDING MACHINE OPERATORS	907	64
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,202	841
795	MISCELLANEOUS HAND WORKING OCCUPATIONS	96
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	199	99
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	189
888	HAND PACKERS AND PACKAGERS	1,661	790
889	LABORERS, EXCEPT CONSTRUCTION	505	28
TOTAL		19,468	6,527

*(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.