PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	285
519	MACHINERY MAINTENANCE OCCUPATIONS	271
544	MILLWRIGHTS	1,135
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	403
549	NOT SPECIFIED MECHANICS AND REPAIRERS	620	4
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	931
637	MACHINISTS	778
SUBTOTAL		4,423	4
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
518	INDUSTRIAL MACHINERY REPAIRERS	159
634	TOOL AND DIE MAKERS	273
779	MACHINE OPERATORS, NOT SPECIFIED	1,477	341
785	ASSEMBLERS	170
SUBTOTAL		2,079	341
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
518	INDUSTRIAL MACHINERY REPAIRERS	375	7
519	MACHINERY MAINTENANCE OCCUPATIONS	62
779	MACHINE OPERATORS, NOT SPECIFIED	410
SUBTOTAL		847	7
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
505	AUTOMOBILE MECHANICS	1,380
SUBTOTAL		1,380
TOTAL		8,729	352
RELATED PAGES: Estimates by SIC, Estimates by Occupation

*(1) The estimates for each occupation apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC where the agent was observed. Not all SICs were surveyed, and not all agents were observed in all surveyed SICs. (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.