New Test Method for Acid Number in Crude Oil

摘要

A new test method from Metrohm for the determination of the acid number in crude oil and petroleum refinery intermediates and products is under active investigation by ASTM (ASTM WK48004). The subject has also been discussed comprehensively in a C&EN webinar, which is available on demand. The new method is superior to ASTM D664 on all levels: It is more accurate, more precise, more reliable, more robust, and more repeatable. Moreover, it is significantly faster than the ASTM D664 potentiometric method, and because it uses much less solvent, reagent and waste disposal costs are much lower.