Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	1,441	432
083	MEDICAL SCIENTISTS	747	149
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	646	545
223	BIOLOGICAL TECHNICIANS	202
224	CHEMICAL TECHNICIANS	102	44
235	TECHNICIANS, N.E.C.	7	7
327	ORDER CLERKS	1,579
444	MISCELLANEOUS FOOD PREPARATION OCCUPATIONS	452	382
446	HEALTH AIDES, EXCEPT NURSING	1,626	1,199
453	JANITORS AND CLEANERS	1,149	16
515	AIRCRAFT MECHANICS, EXC. ENGINE	62
516	HEAVY EQUIPMENT MECHANICS	619
518	INDUSTRIAL MACHINERY REPAIRERS	201
527	TELEPHONE LINE INSTALLERS AND REPAIRERS	723
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	347
549	NOT SPECIFIED MECHANICS AND REPAIRERS	68
557	SUPERVISORS; PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3,250
567	CARPENTERS	237	14
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	3,653
633	SUPERVISORS, PRODUCTION OCCUPATIONS	91
637	MACHINISTS	12
678	DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS	21
719	MOLDING AND CASTING MACHINE OPERATORS	196	20
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	329	34
734	PRINTING MACHINE OPERATORS	10,500	1,062
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	479	319
753	CEMENTING AND GLUING MACHINE OPERATORS	31
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	75
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	2,210	933
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	498
779	MACHINE OPERATORS, NOT SPECIFIED	518
785	ASSEMBLERS	2,984	2,288
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	2,192
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	9	4
869	CONSTRUCTION LABORERS	2,026
873	PRODUCTION HELPERS	584
TOTAL		39,864	7,449

*(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.