Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
045	METALLURGICAL AND MATERIALS ENGINEERS	64
055	ELECTRICAL AND ELECTRONIC ENGINEERS	5
059	ENGINEERS, N.E.C.	24
073	CHEMISTS, EXCEPT BIOCHEMISTS	19
215	MECHANICAL ENGINEERING TECHNICIANS	58
216	ENGINEERING TECHNICIANS, N.E.C.	122	20
224	CHEMICAL TECHNICIANS	37
235	TECHNICIANS, N.E.C.	478
363	PRODUCTION COORDINATORS	8
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	162	31
368	WEIGHERS, MEASURERS, AND CHECKERS	9
374	MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C.	13
453	JANITORS AND CLEANERS	3,226
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	524
515	AIRCRAFT MECHANICS, EXC. ENGINE	45
516	HEAVY EQUIPMENT MECHANICS	11
518	INDUSTRIAL MACHINERY REPAIRERS	727
519	MACHINERY MAINTENANCE OCCUPATIONS	27
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	88
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	11
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	263
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	37
544	MILLWRIGHTS	717
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	458
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,563
563	BRICKMASONS AND STONEMASONS	195
575	ELECTRICIANS	373
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	48
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	48
588	CONCRETE AND TERRAZZO FINISHERS	1,939
637	MACHINISTS	1,065
643	BOILERMAKERS	40
644	PRECISION GRINDERS, FITTERS, AND TOOL SHARPENERS	253
649	ENGRAVERS, METAL	28	9
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	203
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	2,165	1,887
689	INSPECTORS, TESTERS, AND GRADERS	13
696	STATIONARY ENGINEERS	3
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	41
704	LATHE AND TURNING MACHINE OPERATORS	95
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	535
707	ROLLING MACHINE OPERATORS	904
708	DRILLING AND BORING MACHINE OPERATORS	14
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	900	34
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	128
719	MOLDING AND CASTING MACHINE OPERATORS	399	154
723	METAL PLATING MACHINE OPERATORS	256	17
724	HEAT TREATING EQUIPMENT OPERATORS	379
727	SAWING MACHINE OPERATORS	3
753	CEMENTING AND GLUING MACHINE OPERATORS	123	123
755	EXTRUDING AND FORMING MACHINE OPERATORS	1,411
756	MIXING AND BLENDING MACHINE OPERATORS	150
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	133
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	13
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	309
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	2,255	112
768	CRUSHING AND GRINDING MACHINE OPERATORS	5
769	SLICING AND CUTTING MACHINE OPERATORS	788
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,909	28
779	MACHINE OPERATORS, NOT SPECIFIED	37
783	WELDERS AND CUTTERS	3,557	44
784	SOLDERERS AND BRAZERS	259
785	ASSEMBLERS	6,050	2,107
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	89	11
797	PRODUCTION TESTERS	21
798	PRODUCTION SAMPLERS AND WEIGHERS	8
804	TRUCK DRIVERS, HEAVY	328
849	CRANE AND TOWER OPERATORS	618
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	21
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	16
869	CONSTRUCTION LABORERS	1,616
873	PRODUCTION HELPERS	72
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	85
889	LABORERS, EXCEPT CONSTRUCTION	1,039
TOTAL		41,637	4,576

*(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.