SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
28	CHEMICALS AND ALLIED PRODUCTS	279	46
29	PETROLEUM AND COAL PRODUCTS	517	239
34	FABRICATED METAL PRODUCTS	92
35	MACHINERY, EXCEPT ELECTRICAL	1,275	21
36	ELECTRIC AND ELECTRONIC EQUIPMENT	285	206
73	BUSINESS SERVICES	1,740	449
TOTAL		4,188	961

*(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.