Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	629	85
453	JANITORS AND CLEANERS	825
518	INDUSTRIAL MACHINERY REPAIRERS	2,132
734	PRINTING MACHINE OPERATORS	1,364
756	MIXING AND BLENDING MACHINE OPERATORS	77
769	SLICING AND CUTTING MACHINE OPERATORS	256
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	77
888	HAND PACKERS AND PACKAGERS	2,985	2,985
TOTAL		8,346	3,070

*(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.