SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
565	TILE SETTERS, HARD AND SOFT	12,094
SUBTOTAL		12,094
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
633	SUPERVISORS, PRODUCTION OCCUPATIONS	293
756	MIXING AND BLENDING MACHINE OPERATORS	2,162	37
SUBTOTAL		2,455	37
LEATHER AND LEATHER PRODUCTS (SIC 31)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	65
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	164
SUBTOTAL		229
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	88	59
SUBTOTAL		88	59
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
225	SCIENCE TECHNICIANS, N.E.C.	7
SUBTOTAL		7
TOTAL		14,873	96
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.