Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	248	39
225	SCIENCE TECHNICIANS, N.E.C.	148	37
313	SECRETARIES	200	200
453	JANITORS AND CLEANERS	2,218
503	SUPERVISORS, MECHANICS AND REPAIRERS	2,429
508	AIRCRAFT ENGINE MECHANICS	7,028	80
515	AIRCRAFT MECHANICS, EXC. ENGINE	14
575	ELECTRICIANS	108
633	SUPERVISORS, PRODUCTION OCCUPATIONS	356
634	TOOL AND DIE MAKERS	220
637	MACHINISTS	2,904
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	966
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	53
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	277
704	LATHE AND TURNING MACHINE OPERATORS	206	60
705	MILLING AND PLANING MACHINE OPERATORS	57
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	85	14
708	DRILLING AND BORING MACHINE OPERATORS	486
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	4,236	194
713	FORGING MACHINE OPERATORS	34
717	FABRICATING MACHINE OPERATORS, N.E.C.	3
724	HEAT TREATING EQUIPMENT OPERATORS	370
755	EXTRUDING AND FORMING MACHINE OPERATORS	57
769	SLICING AND CUTTING MACHINE OPERATORS	167	9
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,207	6
779	MACHINE OPERATORS, NOT SPECIFIED	9,390	6
783	WELDERS AND CUTTERS	209
785	ASSEMBLERS	696	14
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	54	23
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	3,045
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	193
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	114
889	LABORERS, EXCEPT CONSTRUCTION	143
TOTAL		38,923	680

*(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.