Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	83	83
069	PHYSICISTS AND ASTRONOMERS	1,368	829
073	CHEMISTS, EXCEPT BIOCHEMISTS	2,490	272
078	BIOLOGICAL AND LIFE SCIENTISTS	443	153
083	MEDICAL SCIENTISTS	382	273
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	1,744	1,342
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	1,625	1,134
216	ENGINEERING TECHNICIANS, N.E.C.	71	28
223	BIOLOGICAL TECHNICIANS	888	300
224	CHEMICAL TECHNICIANS	1,671	321
335	FILE CLERKS	225	45
365	STOCK AND INVENTORY CLERKS	135
446	HEALTH AIDES, EXCEPT NURSING	533	480
453	JANITORS AND CLEANERS	226
519	MACHINERY MAINTENANCE OCCUPATIONS	22
549	NOT SPECIFIED MECHANICS AND REPAIRERS	470
567	CARPENTERS	57
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	44
593	INSULATION WORKERS	44
633	SUPERVISORS, PRODUCTION OCCUPATIONS	540
637	MACHINISTS	57
653	SHEET METAL WORKERS	75
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	1,221	971
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	79
705	MILLING AND PLANING MACHINE OPERATORS	78	39
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	45	45
719	MOLDING AND CASTING MACHINE OPERATORS	3,698	1,946
756	MIXING AND BLENDING MACHINE OPERATORS	924	510
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	2,737	386
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	314	43
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	905	39
779	MACHINE OPERATORS, NOT SPECIFIED	15,567	4,364
783	WELDERS AND CUTTERS	751
784	SOLDERERS AND BRAZERS	24	18
785	ASSEMBLERS	1,131	611
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	514	125
878	MACHINE FEEDERS AND OFFBEARERS	382	287
888	HAND PACKERS AND PACKAGERS	361	305
TOTAL		41,988	14,949

*(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.