[Title 40 CFR 60.261]
[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 Z - Standards of Performance for Ferroalloy Production Facilities]
[Sec. 60.261 - Definitions.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.261Sec. 60.261PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Ferroalloy Production Facilities
Sec. 60.261  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) Electric submerged arc furnace means any furnace wherein 
electrical energy is converted to heat energy by transmission of current 
between electrodes partially submerged in the furnace charge.
    (b) Furnace charge means any material introduced into the electric 
submerged arc furnace, and may consist of, but is not limited to, ores, 
slag, carbonaceous material, and limestone.
    (c) Product change means any change in the composition of the 
furnace charge that would cause the electric submerged arc furnace to 
become subject to a different mass standard applicable under this 
subpart.
    (d) Slag means the more or less completely fused and vitrified 
matter separated during the reduction of a metal from its ore.
    (e) Tapping means the removal of slag or product from the electric 
submerged arc furnace under normal operating conditions such as removal 
of metal under normal pressure and movement by gravity down the spout 
into the ladle.
    (f) Tapping period means the time duration from initiation of the 
process of opening the tap hole until plugging of the tap hole is 
complete.
    (g) Furnace cycle means the time period from completion of a furnace 
product tap to the completion of the next consecutive product tap.
    (h) Tapping station means that general area where molten product or 
slag is removed from the electric submerged arc furnace.
    (i) Blowing tap means any tap in which an evolution of gas forces or 
projects jets of flame or metal sparks beyond the ladle, runner, or 
collection hood.
    (j) Furnace power input means the resistive electrical power 
consumption of

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an electric submerged arc furnace as measured in kilowatts.
    (k) Dust-handling equipment means any equipment used to handle 
particulate matter collected by the air pollution control device (and 
located at or near such device) serving any electric submerged arc 
furnace subject to this subpart.
    (l) Control device means the air pollution control equipment used to 
remove particulate matter generated by an electric submerged arc furnace 
from an effluent gas stream.
    (m) Capture system means the equipment (including hoods, ducts, 
fans, dampers, etc.) used to capture or transport particulate matter 
generated by an affected electric submerged arc furnace to the control 
device.
    (n) Standard ferromanganese means that alloy as defined by ASTM 
Designation A99-76 or 82 (Reapproved 1987) (incorporated by reference--
see Sec. 60.17).
    (o) Silicomanganese means that alloy as defined by ASTM Designation 
A483-64 or 74 (Reapproved 1988) (incorporated by reference--see Sec. 
60.17).
    (p) Calcium carbide means material containing 70 to 85 percent 
calcium carbide by weight.
    (q) High-carbon ferrochrome means that alloy as defined by ASTM 
Designation A101-73 or 93 (incorporated by reference--see Sec. 60.17) 
grades HC1 through HC6.
    (r) Charge chrome means that alloy containing 52 to 70 percent by 
weight chromium, 5 to 8 percent by weight carbon, and 3 to 6 percent by 
weight silicon.
    (s) Silvery iron means any ferrosilicon, as defined by ASTM 
Designation A100-69, 74, or 93 (incorporated by reference--see Sec. 
60.17), which contains less than 30 percent silicon.
    (t) Ferrochrome silicon means that alloy as defined by ASTM 
Designation A482-76 or 93 (incorporated by reference--see Sec. 60.17).
    (u) Silicomanganese zirconium means that alloy containing 60 to 65 
percent by weight silicon, 1.5 to 2.5 percent by weight calcium, 5 to 7 
percent by weight zirconium, 0.75 to 1.25 percent by weight aluminum, 5 
to 7 percent by weight manganese, and 2 to 3 percent by weight barium.
    (v) Calcium silicon means that alloy as defined by ASTM Designation 
A495-76 or 94 (incorporated by reference--see Sec. 60.17).
    (w) Ferrosilicon means that alloy as defined by ASTM Designation 
A100-69, 74, or 93 (incorporated by reference--see Sec. 60.17) grades 
A, B, C, D, and E, which contains 50 or more percent by weight silicon.
    (x) Silicon metal means any silicon alloy containing more than 96 
percent silicon by weight.
    (y) Ferromanganese silicon means that alloy containing 63 to 66 
percent by weight manganese, 28 to 32 percent by weight silicon, and a 
maximum of 0.08 percent by weight carbon.

[41 FR 18501, May 4, 1976; 41 FR 20659, May 20, 1976, as amended at 48 
FR 3738, Jan. 27, 1983; 65 FR 61758, Oct. 17, 2000]