Brown stock washer system
Brown stock washer system means brown stock washers and associated knotters, vacuum pumps, and filtrate tanks used to wash the pulp following the digester system. Diffusion washers are excluded from this definition.
Source
40 CFR § 60.281
Scoping language
As used in this subpart, all terms not defined herein shall have the same meaning given them in the Act and in subpart A.