Oxygen cleaning of equipment is required in certain industries, such as aerospace and medical, to ensure the safety and reliability of oxygen systems.
Cleaning for oxygen service refers to the process of removing all potential contaminants from equipment or systems that will come into contact with oxygen to prevent the risk of fire or explosion.
Not all types of stainless steel can be passivated, as the specific alloy and surface condition can affect the effectiveness of the passivation treatment.
The solution used for passivation can vary depending on the specific process being used, but often includes nitric acid, phosphoric acid, or citric acid.
Pickling paste is a type of acid solution used for removing surface contaminants from metal parts, while passivation is a separate process that creates a protective oxide layer on the surface of the metal.