Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	107
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	23	6
216	ENGINEERING TECHNICIANS, N.E.C.	14
449	MAIDS AND HOUSEMEN	1,561
453	JANITORS AND CLEANERS	3,197	33
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	203
549	NOT SPECIFIED MECHANICS AND REPAIRERS	165
634	TOOL AND DIE MAKERS	88
644	PRECISION GRINDERS, FITTERS, AND TOOL SHARPENERS	132	4
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	38
695	POWER PLANT OPERATORS	253
696	STATIONARY ENGINEERS	12
704	LATHE AND TURNING MACHINE OPERATORS	12
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	18
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	8
717	FABRICATING MACHINE OPERATORS, N.E.C.	107
723	METAL PLATING MACHINE OPERATORS	2,687	323
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	376	376
745	SHOE MACHINE OPERATORS	2,405	1,911
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	2,145
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	46
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	342
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,299
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	34
TOTAL		15,271	2,653

*(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.