Kiln
Kiln means a thermal process unit that operates at a peak temperature greater than 820 C (1500 F) and is used for firing or sintering refractory, ceramic, or other shapes.
Source
40 CFR § 63.9824
Scoping language
Terms used in this subpart are defined in the Clean Air Act, in 40 CFR 63.2, the General Provisions of this part, and in this section as follows: