Batch pickling line

Batch pickling line means the collection of equipment and tanks configured for pickling metal in any form but usually in discrete shapes where the material is lowered in batches into a bath of acid solution, allowed to remain until the scale is dissolved, then removed from the solution, drained, and rinsed by spraying or immersion in one or more rinse tanks to remove residual acid.

Source

40 CFR § 63.1156

---

Scoping language

Terms used in this subpart are defined in the Clean Air Act, in subpart A of this part, or in this section as follows:

---

Is this correct? or