SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
33	PRIMARY METAL INDUSTRIES	154
34	FABRICATED METAL PRODUCTS	1,448
35	MACHINERY, EXCEPT ELECTRICAL	903
36	ELECTRIC AND ELECTRONIC EQUIPMENT	255	32
38	INSTRUMENTS AND RELATED PRODUCTS	483	241
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	971
TOTAL		4,213	274

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) 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.