ASTM D8045 – New method for acid number determination in crude oil

contributed by Metrohm | 08/23/2016

The ASTM has released a new method describing the measurement of the Acid Number (AN) in crude oil and petroleum products by thermometric titration. With this new method, you can obtain more robust and reproducible results faster and more easily.

Thermometric titration uses a highly sensitive, fast responding temperature sensor that detects the reaction endpoint based on the enthalpy change in the solution. This method requires no sensor maintenance aside from a solvent rinse, needs no hydration and requires no calibration. New chemistries used in ASTM D8045 significantly lower the cost per analysis as the new method consumes less solvent saving substantial costs for waste disposal.

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