Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	26
216	ENGINEERING TECHNICIANS, N.E.C.	78
453	JANITORS AND CLEANERS	413
505	AUTOMOBILE MECHANICS	32
516	HEAVY EQUIPMENT MECHANICS	130
518	INDUSTRIAL MACHINERY REPAIRERS	5,866	18
544	MILLWRIGHTS	152
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	186
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,410
558	SUPERVISORS, N.E.C.	450
567	CARPENTERS	10,413
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	31
596	SHEETMETAL DUCT INSTALLERS	456
613	SUPERVISORS, EXTRACTIVE OCCUPATIONS	335
614	DRILLERS, OIL WELL	5,362
637	MACHINISTS	38
653	SHEET METAL WORKERS	2,981
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	156
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	156
719	MOLDING AND CASTING MACHINE OPERATORS	442	52
755	EXTRUDING AND FORMING MACHINE OPERATORS	26
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	226
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	130
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	78
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	78
869	CONSTRUCTION LABORERS	686
889	LABORERS, EXCEPT CONSTRUCTION	390
TOTAL		30,725	70

*(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.