Okla. Admin. Code § 252:100-17-2.2
The following words and terms when used in this part and Part 4 of this subchapter shall have the following meaning unless the context clearly indicates otherwise:
"Capacity" means the maximum design charging rate ofrefuse in pounds per hour (lb/hr) an incinerator is designed to receive.
"Particulate matter" or "total particulate matter" means the sum of all filterable and condensable particulate matter emitted to the ambient air as measured by applicable reference methods, or an equivalent or alternative method.
"Primary combustion chamber" means the initial incinerator chamber where refuse is charged, ignited, and burned.
"Secondary combustion chamber" means a component of the general purpose incinerator that receives combustion gases from the primary combustion chamber and in which the combustion process is completed.
Okla. Admin. Code § 252:100-17-2.2