Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
223	BIOLOGICAL TECHNICIANS	88	88
235	TECHNICIANS, N.E.C.	12,637	361
366	METER READERS	825
436	COOKS, EXCEPT SHORT ORDER	439
444	MISCELLANEOUS FOOD PREPARATION OCCUPATIONS	200	18
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	933
686	BUTCHERS AND MEAT CUTTERS	414	280
754	PACKAGING AND FILLING MACHINE OPERATORS	1,053	526
756	MIXING AND BLENDING MACHINE OPERATORS	1,081	387
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	96
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,509	119
888	HAND PACKERS AND PACKAGERS	351
889	LABORERS, EXCEPT CONSTRUCTION	175
TOTAL		19,802	1,779

*(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.