Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
048	CHEMICAL ENGINEERS	71
056	INDUSTRIAL ENGINEERS	81
073	CHEMISTS, EXCEPT BIOCHEMISTS	968	14
078	BIOLOGICAL AND LIFE SCIENTISTS	30	30
083	MEDICAL SCIENTISTS	28	28
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	660	57
216	ENGINEERING TECHNICIANS, N.E.C.	139	7
224	CHEMICAL TECHNICIANS	4,621	1,390
225	SCIENCE TECHNICIANS, N.E.C.	796	488
235	TECHNICIANS, N.E.C.	24
327	ORDER CLERKS	1,579
366	METER READERS	2,470	263
446	HEALTH AIDES, EXCEPT NURSING	407	181
453	JANITORS AND CLEANERS	3,599
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	45
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	795
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,127
557	SUPERVISORS; PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3,250
567	CARPENTERS	403
575	ELECTRICIANS	741
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	1,481
593	INSULATION WORKERS	794	161
614	DRILLERS, OIL WELL	4,694
633	SUPERVISORS, PRODUCTION OCCUPATIONS	547
637	MACHINISTS	982
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
696	STATIONARY ENGINEERS	123
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	1,325
724	HEAT TREATING EQUIPMENT OPERATORS	167	17
754	PACKAGING AND FILLING MACHINE OPERATORS	772
756	MIXING AND BLENDING MACHINE OPERATORS	256	12
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	3,528
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	489
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	563
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	10,816	81
779	MACHINE OPERATORS, NOT SPECIFIED	1,959
783	WELDERS AND CUTTERS	760
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	4,392
848	HOIST AND WINCH OPERATORS	8,072
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	322
878	MACHINE FEEDERS AND OFFBEARERS	1,707
TOTAL		65,649	2,728

*(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.