Code of Federal Regulations Title 40. Protection of Environment § 40.413.11 Specialized definitions

(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.