CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	197	4
SUBTOTAL		197	4
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
637	MACHINISTS	194
SUBTOTAL		194
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	559
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	839	93
769	SLICING AND CUTTING MACHINE OPERATORS	7
SUBTOTAL		1,405	93
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	101	14
SUBTOTAL		101	14
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
723	METAL PLATING MACHINE OPERATORS	65
SUBTOTAL		65
TOTAL		1,962	111
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.