Descriptors | Petroleum products, Petroleum, Chemical analysis and testing, Acid number, Chemical indices, Determination of content, Potentiometric methods, Volumetric analysis, Acidimetry, Lubricating oils, Oxidizing agents, Performance testing, Test equipment, Testing conditions, Electrodes, Sampling methods, Mathematical calculations, Precision, Reproducibility, Neutralization index, Specimen preparation, Base number, Alkalimetry |