Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
225	SCIENCE TECHNICIANS, N.E.C.	206	62
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	1,462
453	JANITORS AND CLEANERS	4,897
505	AUTOMOBILE MECHANICS	1,267
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	2,255
514	AUTOMOBILE BODY AND RELATED REPAIRERS	507
515	AIRCRAFT MECHANICS, EXC. ENGINE	206
516	HEAVY EQUIPMENT MECHANICS	1,310
518	INDUSTRIAL MACHINERY REPAIRERS	103
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	3,405
544	MILLWRIGHTS	407
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	2,534
549	NOT SPECIFIED MECHANICS AND REPAIRERS	882
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	48
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	437	17
633	SUPERVISORS, PRODUCTION OCCUPATIONS	2,081	380
637	MACHINISTS	1,392
643	BOILERMAKERS	34	6
653	SHEET METAL WORKERS	2,347	43
655	MISCELLANEOUS PRECISION METAL WORKERS	364
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	170	73
717	FABRICATING MACHINE OPERATORS, N.E.C.	199	57
733	MISCELLANEOUS WOODWORKING MACHINE OPERATORS	119
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	48
779	MACHINE OPERATORS, NOT SPECIFIED	2,027	697
783	WELDERS AND CUTTERS	11,629	12
785	ASSEMBLERS	2,819	31
793	HAND ENGRAVING AND PRINTING OCCUPATIONS	475
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	1,077
889	LABORERS, EXCEPT CONSTRUCTION	5,448	950
TOTAL		50,154	2,327

*(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.