Blog | Inox Passivation

Why Citric Acid Is Used For Passivation of Stainless Steel

Laboratory chemicals representing citric acid passivation used for treating stainless steel surfaces.

While nitric acid passivation is a traditional choice for stainless steel and complies with standards like ASTM A967, concerns over its toxicity and environmental impact have led to a growing interest in alternative passivation methods. Citric acid passivation has emerged as a strong …

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The Benefits Of Chemical Cleaning For Stainless Steel Equipment

Industrial stainless steel pipework and equipment representing stainless steel chemical cleaning in a processing facility.

Stainless steel chemical cleaning is a proactive investment in performance and longevity for your production assets and equipment. In this article, we will explain the main benefits of stainless steel chemical cleaning , and how it can protect your equipment.

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6 Key Main Differences Between ASTM A380 vs A967 Passivation Processes

astm a380 vs a967 stainless steel passivation process

The stainless steel passivation process is an important chemical treatment that enhances the corrosion resistance of stainless steel by removing free iron and other contaminants from its surface. Two primary standards govern this process: ASTM A380 and ASTM A967. While both address th …

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Understanding The Key Types Of Audits Used In The Pharmaceutical Industry

Audit checklist with completed checks representing quality and compliance audits in the pharmaceutical industry.

There are two broad categories of audit you are likely to come across in the pharmaceutical industry: internal audits and external audits. Each has the same goal of verifying compliance with jurisdictional, industry-based or project-specific standards in some way, but they are carried …

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Understanding The Passivation Process For Different Industries

Stainless steel processing equipment in a controlled facility representing the passivation process used across different industries.

The passivation process is used for various reasons in different industries. By creating a corrosion-resistant surface on stainless steel equipment, passivation helps maintain hygiene, increases product quality, and increases the longevity of equipment. This has wide ranging benefits, …

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Utilising An Audit Checklist For Pharmaceutical Industry Standards

Pharmaceutical audit checklist being completed at a pharmaceutical plant.

What is an audit in the pharmaceutical industry? For pharmaceutical businesses, an audit is an independent and systematic examination of various processes, documentary trails or systems to verify compliance with certain standards. These could include Good Manufacturing Practices (GMP) …

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The Importance Of Removing Biofilm From Pharmaceutical Water Systems

A stainless steel pharmaceutical water system is being cleaned, highlighting the importance of removing biofilm for safety and compliance.

In the pharmaceutical industry, the regular maintenance of water systems is critical to ensure product safety and regulatory compliance. Biofilm removal, in particular, helps to overcome the problem of contamination in an industry in which water purity underpins product quality and co …

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Ensuring Residue Removal: The Importance Of Riboflavin Coverage Testing

ASME BPE standard being checked on a big chromed tank.

In pharmaceutical manufacturing, product safety and efficiency depend on equipment that is clean and well-maintained. While stainless steel passivation is essential to enhance the corrosion resistance of equipment surfaces, residues left during manufacture can increase the risk of pro …

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Understanding Rouge Formation In Iron Contaminated Water And Its Risks

Close-up of iron-contaminated water showing reddish rouging deposits inside industrial piping, highlighting the risks of rouge formation.

Rouge—a reddish-brown or black deposit that can form on stainless steel surfaces when exposed to iron-contaminated water—is a particularly concerning phenomenon in industries that rely on high-purity water systems. Derouging stainless steel is a highly effective way to protect equipme …

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Benefits Of Stainless Steel Pickling In The Power Generation Industry

Stainless steel pickling is an important maintenance process for equipment and components used in the power generation sector, improving the reliability and durability of assets exposed to demanding conditions, and maintaining compliance with industry standards. The pickling process r …

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