SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
26	PAPER AND ALLIED PRODUCTS	129	43
28	CHEMICALS AND ALLIED PRODUCTS	281	127
32	STONE, CLAY, AND GLASS PRODUCTS	59	14
33	PRIMARY METAL INDUSTRIES	26
34	FABRICATED METAL PRODUCTS	749	150
36	ELECTRIC AND ELECTRONIC EQUIPMENT	171	85
38	INSTRUMENTS AND RELATED PRODUCTS	25
45	TRANSPORTATION BY AIR	168
49	ELECTRIC, GAS, AND SANITARY SERVICES	1,402
73	BUSINESS SERVICES	118	45
TOTAL		3,127	464

*(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.