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Acid Passivation Procedure for Stainless Steel by Mario is a document available to read on EtoBox.

What is Acid Passivation Procedure for Stainless Steel about?

This document outlines procedures for manually passivating stainless steel pipes onsite at Nestle Purina. It discusses that passivation involves using an acid solution to remove surface iron and leave a protective oxide layer. The procedure details cleaning, preparing an acid solution, circulating the solution for two hours while monitoring temperature and iron levels, neutralizing and rinsing the equipment, and performing a colorimetric test to check for free iron. Safety precautions are also provided and

Author

Mario

Language

EN