Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	566	17
073	CHEMISTS, EXCEPT BIOCHEMISTS	145
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	765	107
216	ENGINEERING TECHNICIANS, N.E.C.	198	52
223	BIOLOGICAL TECHNICIANS	686	300
224	CHEMICAL TECHNICIANS	92
225	SCIENCE TECHNICIANS, N.E.C.	20	11
235	TECHNICIANS, N.E.C.	1,059	112
453	JANITORS AND CLEANERS	982	6
519	MACHINERY MAINTENANCE OCCUPATIONS	22
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	86
549	NOT SPECIFIED MECHANICS AND REPAIRERS	470
567	CARPENTERS	57
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	44
593	INSULATION WORKERS	44
637	MACHINISTS	57
653	SHEET METAL WORKERS	75
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	29
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	79
756	MIXING AND BLENDING MACHINE OPERATORS	619
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	2,993	702
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	314	43
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	1,814	1,434
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	190
779	MACHINE OPERATORS, NOT SPECIFIED	235	52
783	WELDERS AND CUTTERS	751
785	ASSEMBLERS	121	109
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	9
TOTAL		12,587	2,945

*(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.