National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by 2-Digit Standard Industrial Classification (SIC)*

Agent Name MANGANESE ALLOY, MN 65-68,FE 10-23,SI 12-21,C 0.5-3,P 0-0.2 (ASTM A483)
CAS # 12743-28-1
RTECS #
Agent Code X4540

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
26 PAPER AND ALLIED PRODUCTS 3,784 1,563
33 PRIMARY METAL INDUSTRIES 3,056 21
34 FABRICATED METAL PRODUCTS 8,395  
35 MACHINERY, EXCEPT ELECTRICAL 7,480 35
37 TRANSPORTATION EQUIPMENT 1,340 65
38 INSTRUMENTS AND RELATED PRODUCTS 164  
TOTAL 24,219 1,684

*(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.

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