Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	15
224	CHEMICAL TECHNICIANS	92
235	TECHNICIANS, N.E.C.	159
365	STOCK AND INVENTORY CLERKS	12
385	DATA-ENTRY KEYERS	1,602	764
453	JANITORS AND CLEANERS	760
508	AIRCRAFT ENGINE MECHANICS	6,707	57
519	MACHINERY MAINTENANCE OCCUPATIONS	22
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	1,553
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	1,844	1,306
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,884	302
563	BRICKMASONS AND STONEMASONS	2,967
567	CARPENTERS	1,990
575	ELECTRICIANS	6,622
576	ELECTRICIAN APPRENTICES	368
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	3,106
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	825	75
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	2,663
593	INSULATION WORKERS	44
637	MACHINISTS	186
653	SHEET METAL WORKERS	75
656	PATTERNMAKERS AND MODEL MAKERS, WOOD	12
657	CABINET MAKERS AND BENCH CARPENTERS	1,969
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	114
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	989	540
719	MOLDING AND CASTING MACHINE OPERATORS	65
733	MISCELLANEOUS WOODWORKING MACHINE OPERATORS	1,512	672
734	PRINTING MACHINE OPERATORS	749
756	MIXING AND BLENDING MACHINE OPERATORS	1,573	40
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	57
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	57
779	MACHINE OPERATORS, NOT SPECIFIED	277
783	WELDERS AND CUTTERS	941
785	ASSEMBLERS	7,667	2,961
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	9
833	MARINE ENGINEERS	2,632
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	74
878	MACHINE FEEDERS AND OFFBEARERS	2,985	202
888	HAND PACKERS AND PACKAGERS	1,291	81
TOTAL		57,535	6,999

*(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.