CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	26
633	SUPERVISORS, PRODUCTION OCCUPATIONS	53
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	53
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	53
779	MACHINE OPERATORS, NOT SPECIFIED	66
SUBTOTAL		251
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	653
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	254
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	314	14
878	MACHINE FEEDERS AND OFFBEARERS	322
SUBTOTAL		1,543	14
TOTAL		1,794	14
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.