Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
008	PERSONNEL AND LABOR RELATIONS MANAGERS	542
057	MECHANICAL ENGINEERS	205
235	TECHNICIANS, N.E.C.	78
365	STOCK AND INVENTORY CLERKS	1,609	408
453	JANITORS AND CLEANERS	14,692	434
505	AUTOMOBILE MECHANICS	236
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	559
516	HEAVY EQUIPMENT MECHANICS	133
518	INDUSTRIAL MACHINERY REPAIRERS	2,005
519	MACHINERY MAINTENANCE OCCUPATIONS	46
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	88
544	MILLWRIGHTS	27
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	141
549	NOT SPECIFIED MECHANICS AND REPAIRERS	7,458	305
567	CARPENTERS	3,773
575	ELECTRICIANS	725
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	455	17
633	SUPERVISORS, PRODUCTION OCCUPATIONS	305
637	MACHINISTS	4,511
643	BOILERMAKERS	34	6
653	SHEET METAL WORKERS	1,132	43
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	7,040	306
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	2,552
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	256
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	3
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	985	985
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	250	160
717	FABRICATING MACHINE OPERATORS, N.E.C.	1,550	57
727	SAWING MACHINE OPERATORS	134
734	PRINTING MACHINE OPERATORS	5,313
744	TEXTILE SEWING MACHINE OPERATORS	10,892	10,892
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	644
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	158
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	490
769	SLICING AND CUTTING MACHINE OPERATORS	71
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	3,947	81
779	MACHINE OPERATORS, NOT SPECIFIED	394	32
783	WELDERS AND CUTTERS	226
785	ASSEMBLERS	7
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	3,953
804	TRUCK DRIVERS, HEAVY	3,958
825	RAILROAD BRAKE, SIGNAL, AND SWITCH OPERATORS	16
844	OPERATING ENGINEERS	2,108
848	HOIST AND WINCH OPERATORS	8,072
853	EXCAVATING AND LOADING MACHINE OPERATORS	762
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	1,203	134
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	322
878	MACHINE FEEDERS AND OFFBEARERS	367	245
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	689
888	HAND PACKERS AND PACKAGERS	90
TOTAL		95,205	14,106

*(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.