Nitric Acid Resistance Test

Nitric Acid Resistance Test

Nitric Acid Resistance Test is a chemical resistance test used to evaluate the corrosion resistance of metals and alloys against nitric acid exposure. Nitric Acid Resistance Test is widely applied for stainless steel, medical devices, and industrial components.

Purpose

• Evaluate corrosion resistance
• Verify passivation effectiveness
• Detect free iron contamination
• Ensure surface quality

Methodology

• Sample preparation and cleaning
• Immersion in nitric acid solution (20–65%)
• Controlled temperature and exposure time
• Rinsing and drying
• Visual and gravimetric evaluation

Standards

• ASTM A967
• ASTM A380
• ISO 3651-1

Conclusion

Nitric Acid Resistance Test is essential for assessing material durability in aggressive chemical environments and ensuring product quality and safety.