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Technical Whitepaper Download

Adding Additional Value to Corrosion to Metals Testing Using HPLC-UV Analysis of the Test Materials

Corrosion to metals testing is a critical requirement for ensuring the safe transport of goods, as mandated by regulations such as the UN Transportation of Dangerous Goods Recommendations, GHS, IMSBC, and various EC regulations. Standard testing typically involves immersing steel and aluminium coupons in a test material at 55°C for up to 28 days, assessing changes in appearance, corrosion effects, and mass loss. However, due to the complexity of corrosivity, multiple factors such as ingredient interactions and decomposition can impact the test results. To enhance the standard test, high-pressure liquid chromatography with ultraviolet detection (HPLC-UV) can be used to analyse the organic components of the test material.
This method allows for the detection of compositional changes throughout testing, offering insights into the material’s behaviour with metalsand other materials. Although not required by regulation, HPLC-UV adds significant value to corrosion testing by tracking any chemical changes, improving the accuracy and reliability of the results.

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