SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
30	RUBBER AND MISC. PLASTICS PRODUCTS	330
33	PRIMARY METAL INDUSTRIES	145
34	FABRICATED METAL PRODUCTS	1,657	132
35	MACHINERY, EXCEPT ELECTRICAL	10,659	364
36	ELECTRIC AND ELECTRONIC EQUIPMENT	53
37	TRANSPORTATION EQUIPMENT	244
38	INSTRUMENTS AND RELATED PRODUCTS	4,191	1,295
TOTAL		17,279	1,790

*(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.