CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	2,228	356
453	JANITORS AND CLEANERS	891
756	MIXING AND BLENDING MACHINE OPERATORS	1,203
SUBTOTAL		4,322	356
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	154
779	MACHINE OPERATORS, NOT SPECIFIED	975
SUBTOTAL		1,129
TOTAL		5,451	356
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.