PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	517	239
453	JANITORS AND CLEANERS	1,917
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	795
754	PACKAGING AND FILLING MACHINE OPERATORS	68
756	MIXING AND BLENDING MACHINE OPERATORS	98
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	7
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	4,965	7
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	215
889	LABORERS, EXCEPT CONSTRUCTION	98
SUBTOTAL		8,680	246
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	17	11
SUBTOTAL		17	11
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
385	DATA-ENTRY KEYERS	500
SUBTOTAL		500
TOTAL		9,197	257
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.