Potentiometric determination of TBN in petroleum products according to ISO 3771, ASTM D2896, and IP 276

Basic constitutes are added to petroleum products to prevent corrosion as they neutralize acidic components, which can occur during the use and ageing of the petroleum products. The total base number (TBN) gives an indication on the amount of these basic additives present and it can be used as a measure for the degradation of the petroleum product.

This Application Note describes the potentiometric determination of the TBN according to ISO 3771, ASTM D2896 and IP 276 using the Solvotrode easyClean. The investigated sample is a lubricating oil.