40 CFR § 413.21 - Specialized definitions.

For the purpose of this subpart:

(a) The term sq m (“sq ft”) shall mean the area plated expressed in square meters (square feet).

(b) The term operation shall mean any step in the electroplating process in which a metal is electrodeposited on a basis material and which is followed by a rinse: This includes the related operations of alkaline cleaning, acid pickle, stripping, and coloring when each operation is followed by a rinse.