SN/T 5251-2020 in English

This standard specifies a method for determining the content of sodium, aluminum, silicon, calcium, titanium, vanadium, manganese, iron, nickel, and sulfur in imported and exported petroleum coke using wavelength-dispersive X-ray fluorescence spectrometry. It outlines the principles, reagents, equipment, sample preparation, calibration, measurement procedures, and data processing required for the analysis. The method is applicable to the quantitative determination of the aforementioned elements in petroleum coke samples, ensuring accuracy and reliability in the results. The standard provides detailed operational steps and requirements for the implementation of the technique, facilitating its application in the field of commodity inspection. It serves as a reference for laboratories conducting such analyses and contributes to the consistency and comparability of test results across different testing facilities.