Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
185	DESIGNERS	575	246
216	ENGINEERING TECHNICIANS, N.E.C.	162
224	CHEMICAL TECHNICIANS	2,597	384
225	SCIENCE TECHNICIANS, N.E.C.	24
235	TECHNICIANS, N.E.C.	26
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	112	28
453	JANITORS AND CLEANERS	5,353
505	AUTOMOBILE MECHANICS	45
544	MILLWRIGHTS	21
549	NOT SPECIFIED MECHANICS AND REPAIRERS	246
637	MACHINISTS	334
643	BOILERMAKERS	6,423
653	SHEET METAL WORKERS	1,986
689	INSPECTORS, TESTERS, AND GRADERS	193
696	STATIONARY ENGINEERS	512
713	FORGING MACHINE OPERATORS	828
719	MOLDING AND CASTING MACHINE OPERATORS	840	476
735	PHOTOENGRAVERS AND LITHOGRAPHERS	76
753	CEMENTING AND GLUING MACHINE OPERATORS	1,264
754	PACKAGING AND FILLING MACHINE OPERATORS	68
756	MIXING AND BLENDING MACHINE OPERATORS	646
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	3,661	210
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	89
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,742	2,730
779	MACHINE OPERATORS, NOT SPECIFIED	4,029
783	WELDERS AND CUTTERS	73
785	ASSEMBLERS	9,707	2,619
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	438
797	PRODUCTION TESTERS	122	61
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	215
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	853
889	LABORERS, EXCEPT CONSTRUCTION	98
TOTAL		44,358	6,755

*(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.