Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
027	PERSONNEL, TRAINING, AND LABOR RELATIONS SPECIALISTS	50
045	METALLURGICAL AND MATERIALS ENGINEERS	64
048	CHEMICAL ENGINEERS	10
055	ELECTRICAL AND ELECTRONIC ENGINEERS	5
056	INDUSTRIAL ENGINEERS	140
073	CHEMISTS, EXCEPT BIOCHEMISTS	2,451	802
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	875	132
216	ENGINEERING TECHNICIANS, N.E.C.	220	52
223	BIOLOGICAL TECHNICIANS	13	13
224	CHEMICAL TECHNICIANS	3,195	736
225	SCIENCE TECHNICIANS, N.E.C.	540	242
235	TECHNICIANS, N.E.C.	1,116	148
363	PRODUCTION COORDINATORS	8
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	8
374	MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C.	13
446	HEALTH AIDES, EXCEPT NURSING	78	52
453	JANITORS AND CLEANERS	15,517
505	AUTOMOBILE MECHANICS	21
516	HEAVY EQUIPMENT MECHANICS	11
518	INDUSTRIAL MACHINERY REPAIRERS	21
519	MACHINERY MAINTENANCE OCCUPATIONS	137	7
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	88
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	11
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	10
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	37
544	MILLWRIGHTS	959	7
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	889
549	NOT SPECIFIED MECHANICS AND REPAIRERS	3,031
563	BRICKMASONS AND STONEMASONS	75
567	CARPENTERS	840
575	ELECTRICIANS	957
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	35
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	6,059	69
593	INSULATION WORKERS	838	161
617	MINING OCCUPATIONS, N.E.C.	3,437
633	SUPERVISORS, PRODUCTION OCCUPATIONS	393
637	MACHINISTS	1,055
643	BOILERMAKERS	40
653	SHEET METAL WORKERS	75
677	OPTICAL GOODS WORKERS	826	426
689	INSPECTORS, TESTERS, AND GRADERS	13
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
696	STATIONARY ENGINEERS	3
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	887
704	LATHE AND TURNING MACHINE OPERATORS	3
707	ROLLING MACHINE OPERATORS	125
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	24
719	MOLDING AND CASTING MACHINE OPERATORS	1,464	50
724	HEAT TREATING EQUIPMENT OPERATORS	48
727	SAWING MACHINE OPERATORS	3
735	PHOTOENGRAVERS AND LITHOGRAPHERS	1,026	91
755	EXTRUDING AND FORMING MACHINE OPERATORS	323
756	MIXING AND BLENDING MACHINE OPERATORS	287	14
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	7,486	158
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	13
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	546
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	16
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	3,389	253
768	CRUSHING AND GRINDING MACHINE OPERATORS	1,732	367
769	SLICING AND CUTTING MACHINE OPERATORS	2,258	2,245
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	14,590	384
779	MACHINE OPERATORS, NOT SPECIFIED	5,687
783	WELDERS AND CUTTERS	835
785	ASSEMBLERS	117
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	78
797	PRODUCTION TESTERS	21
798	PRODUCTION SAMPLERS AND WEIGHERS	8
804	TRUCK DRIVERS, HEAVY	5
844	OPERATING ENGINEERS	693
849	CRANE AND TOWER OPERATORS	557
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	21
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,182
869	CONSTRUCTION LABORERS	3,953
873	PRODUCTION HELPERS	1,360
878	MACHINE FEEDERS AND OFFBEARERS	322
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	1,204	79
889	LABORERS, EXCEPT CONSTRUCTION	427	28
TOTAL		94,923	6,515

*(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.