SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	699
SUBTOTAL		699
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	309	287
SUBTOTAL		309	287
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	314	169
677	OPTICAL GOODS WORKERS	826	426
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	552	107
785	ASSEMBLERS	314	220
SUBTOTAL		2,006	922
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
723	METAL PLATING MACHINE OPERATORS	116
SUBTOTAL		116
TOTAL		3,130	1,209
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.