SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
28	CHEMICALS AND ALLIED PRODUCTS	372	139
30	RUBBER AND MISC. PLASTICS PRODUCTS	3,051	1,595
33	PRIMARY METAL INDUSTRIES	430
34	FABRICATED METAL PRODUCTS	30
35	MACHINERY, EXCEPT ELECTRICAL	34	11
36	ELECTRIC AND ELECTRONIC EQUIPMENT	1,591	1,054
37	TRANSPORTATION EQUIPMENT	909	253
38	INSTRUMENTS AND RELATED PRODUCTS	606	21
TOTAL		7,023	3,073

*(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.