Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	317
055	ELECTRICAL AND ELECTRONIC ENGINEERS	14
056	INDUSTRIAL ENGINEERS	155	78
073	CHEMISTS, EXCEPT BIOCHEMISTS	586	195
216	ENGINEERING TECHNICIANS, N.E.C.	121
218	SURVEYING AND MAPPING TECHNICIANS	1,750
224	CHEMICAL TECHNICIANS	524	239
225	SCIENCE TECHNICIANS, N.E.C.	7,434	926
235	TECHNICIANS, N.E.C.	2,080
356	MAIL CLERKS, EXC. POSTAL SERVICE	28
385	DATA-ENTRY KEYERS	1,171
453	JANITORS AND CLEANERS	13,421	205
505	AUTOMOBILE MECHANICS	35
518	INDUSTRIAL MACHINERY REPAIRERS	4,259
519	MACHINERY MAINTENANCE OCCUPATIONS	22
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	638
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	353
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	903
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,305
558	SUPERVISORS, N.E.C.	275
563	BRICKMASONS AND STONEMASONS	123
575	ELECTRICIANS	65
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	1,402
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	22,165
613	SUPERVISORS, EXTRACTIVE OCCUPATIONS	290	97
614	DRILLERS, OIL WELL	5,777
617	MINING OCCUPATIONS, N.E.C.	5,278
633	SUPERVISORS, PRODUCTION OCCUPATIONS	3,782	1,083
634	TOOL AND DIE MAKERS	999
637	MACHINISTS	523	17
653	SHEET METAL WORKERS	856
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	1,213
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	487
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	116
695	POWER PLANT OPERATORS	270
696	STATIONARY ENGINEERS	4,418
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	1,131
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	130	130
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	335
713	FORGING MACHINE OPERATORS	2,349
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	90
717	FABRICATING MACHINE OPERATORS, N.E.C.	22
719	MOLDING AND CASTING MACHINE OPERATORS	1,921	249
724	HEAT TREATING EQUIPMENT OPERATORS	2,559	3
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	16
727	SAWING MACHINE OPERATORS	371
753	CEMENTING AND GLUING MACHINE OPERATORS	1,664	755
755	EXTRUDING AND FORMING MACHINE OPERATORS	741
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	1,575	79
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	1,364
763	ROASTING AND BAKING MACHINE OPERATORS, FOOD	208
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	4,101	328
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	17,009	2,120
779	MACHINE OPERATORS, NOT SPECIFIED	5,970	80
783	WELDERS AND CUTTERS	1,643
784	SOLDERERS AND BRAZERS	105
785	ASSEMBLERS	5,059	4,825
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,217	947
849	CRANE AND TOWER OPERATORS	21
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	1,891
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,453
865	HELPERS, CONSTRUCTION TRADES	837
873	PRODUCTION HELPERS	120
878	MACHINE FEEDERS AND OFFBEARERS	801
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	644
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	639
888	HAND PACKERS AND PACKAGERS	767
889	LABORERS, EXCEPT CONSTRUCTION	1,178
TOTAL		142,090	12,355

*(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.