C3 Type II – Copper, Nickel and Alloys: To be used for copper, its alloys, nickel and its alloys.C3.1 Components shall be deburred and have all sharp edges removed.C3.2 Clean components in a mild alkaline cleaner (Oakite 61B) or equivalent, using manufacturers recommended temperature, concentration, and procedures to remove all greases, oil, markings and fingerprints.C3.3 Immerse component briefly in a room temperature bath consisting of 10% hydrochloric acid (HCL) with the balance of DI water.C3.4 Rinse in drag out rinse tank (for 30 seconds minimum) and/or power flush (min. 40 psi) to remove residues from all surfaces crevices, and blind holes.C3.5 Immerse in a hot DI water bath (110 °F / 45 °C) for 3 minutes. Do not allow the temperature to exceed 115 °F.C3.6 Dry part thoroughly using filtered dry nitrogen or oil free air.