Flushing of fixed lines
Flushing of fixed lines means the flushing of solvent through lines that are typically fixed and are not associated with the cleaning of a tank, such as the line from the mix room to the coater.
Source
40 CFR § 63.702
Scoping language
All terms used in this subpart that are not defined below have the meaning given to them in the Clean Air Act and in subpart A of this part.