CFR /  Title 40  /  Part 421  /  Sec. 421.91 Specialized definitions.

(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 apply to this subpart.

(b) The term product means 100 percent equivalent sulfuric acid, H2 SO4 capacity. [50 FR 38342, Sept. 20, 1985]