---
kind: "section"
citation: "40 C.F.R. § 60.181"
title: "40"
number: "60.181"
heading: "Definitions."
url: "https://uscodex.org/cfr/40/60.181"
---

# §60.181. 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) Primary lead smelter means any installation or any intermediate process engaged in the production of lead from lead sulfide ore concentrates through the use of pyrometallurgical techniques.
- (b) Sintering machine means any furnace in which a lead sulfide ore concentrate charge is heated in the presence of air to eliminate sulfur contained in the charge and to agglomerate the charge into a hard porous mass called sinter.
- (c) Sinter bed means the lead sulfide ore concentrate charge within a sintering machine.
- (d) Sintering machine discharge end means any apparatus which receives sinter as it is discharged from the conveying grate of a sintering machine.
- (e) Blast furnace means any reduction furnace to which sinter is charged and which forms separate layers of molten slag and lead bullion.
- (f) Dross reverberatory furnace means any furnace used for the removal or refining of impurities from lead bullion.
- (g) 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.
- (h) Converter means any vessel to which lead concentrate or bullion is charged and refined.
- (i) Sulfuric acid plant means any facility producing sulfuric acid by the contact process.

## Notes

### Source

Source: 41 FR 2340, Jan. 15, 1976, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.