The determination of the acid number plays a significant role in the analysis of petroleum products. This is manifested in the numerous standard procedures in use over the world (ASTM, DIN, IP, ISO, etc.). These procedures differ mainly in the composition of the used solvents and titrants.

In collaboration with the ASTM, Metrohm has revised and developed a new version of ASTM D664 for the potentiometric determination of TAN/TBN. This version allows you to

• Reduce the required amount of solvent from 125 ml to 60 ml
• Save costs and reduce waste
• Significantly improve the accuracy and reproducibility of results

Learn more from our application Bulletin!