Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	27	27
225	SCIENCE TECHNICIANS, N.E.C.	48
235	TECHNICIANS, N.E.C.	1,196	852
453	JANITORS AND CLEANERS	218
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	1,042
544	MILLWRIGHTS	135
633	SUPERVISORS, PRODUCTION OCCUPATIONS	106
689	INSPECTORS, TESTERS, AND GRADERS	14
696	STATIONARY ENGINEERS	95
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	434
723	METAL PLATING MACHINE OPERATORS	8,206	2,315
756	MIXING AND BLENDING MACHINE OPERATORS	180
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	796	6
779	MACHINE OPERATORS, NOT SPECIFIED	350
848	HOIST AND WINCH OPERATORS	214
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	131
878	MACHINE FEEDERS AND OFFBEARERS	1,290	1,209
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	1,411
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	289
888	HAND PACKERS AND PACKAGERS	347	347
TOTAL		16,527	4,755

*(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.