[Title 40 CFR 60.141]
[Code of Federal Regulations (annual edition) - July 1, 2009 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 60 - STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--]
[Subpart N - Standards of Performance for Primary Emissions from Basic]
[Sec. 60.141 - Definitions.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.141Sec. 60.141PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Primary Emissions from Basic
Sec. 60.141  Definitions.

    As used in this subpart, all terms not defined herein shall have the 
meaning given them in the Act and in subpart A of this part.
    (a) Basic oxygen process furnace (BOPF) means any furnace with a 
refractory lining in which molten steel is produced by charging scrap 
metal, molten iron, and flux materials or alloy additions into a vessel 
and introducing a high volume of oxygen-rich gas. Open hearth, blast, 
and reverberatory furnaces are not included in this definition.
    (b) Primary emissions means particulate matter emissions from the 
BOPF generated during the steel production cycle and captured by the 
BOPF primary control system.
    (c) Primary oxygen blow means the period in the steel production 
cycle of a BOPF during which a high volume of oxygen-rich gas is 
introduced to the bath of molten iron by means of a lance inserted from 
the top of the vessel or through tuyeres in the bottom or through the 
bottom and sides of the vessel. This definition does not include any 
additional or secondary oxygen blows made after the primary blow or the 
introduction of nitrogen or other inert gas through tuyeres in the 
bottom or bottom and sides of the vessel.
    (d) Steel production cycle means the operations conducted within the 
BOPF steelmaking facility that are required to produce each batch of 
steel and includes the following operations: scrap charging, preheating 
(when used), hot metal charging, primary oxygen blowing, sampling 
(vessel turndown and turnup), additional oxygen blowing (when used), 
tapping, and deslagging. This definition applies to an affected facility 
constructed, modified, or reconstructed after January 20, 1983. For an 
affected facility constructed, modified, or reconstructed after June 11, 
1973, but on or before January 20, 1983, steel production cycle means 
the operations conducted within the BOPF steelmaking facility that are 
required to produce each batch of steel and includes the following 
operations: scrap charging, preheating (when used), hot metal charging, 
primary oxygen blowing, sampling (vessel turndown and turnup), 
additional oxygen blowing (when used), and tapping.

[39 FR 9318, Mar. 8, 1974, as amended at 51 FR 160, Jan. 2, 1986]