Electric smelting furnace

Electric smelting furnace means any furnace in which the heat necessary for smelting of the lead sulfide ore concentrate charge is generated by passing an electric current through a portion of the molten mass in the furnace.

Source

40 CFR § 60.181

Scoping language

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.