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ASTM D8252-23

Standard Test Method for Vanadium and Nickel in Crude and Residual Oil by X-ray Spectrometry

standard by ASTM International , 11/01/2023

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Full Description

1.1 This test method covers the quantitative determination of total vanadium and nickel in crude and residual oil in the concentration ranges shown in Table 1 using X-ray fluorescence (XRF) spectrometry.
1.2 Sulfur is measured for analytical purposes only for the compensation of X-ray absorption matrix effects affecting the vanadium and nickel X-rays. For measurement of sulfur by standard test method use Test Methods D4294, D2622 or other suitable standard test method for sulfur in crude and residual oils.
1.3 This test method is limited to the use of X-ray fluorescence (XRF) spectrometers employing an X-ray tube for excitation in conjunction with wavelength dispersive detection system or energy dispersive high resolution semiconductor detector with the ability to separate signals of adjacent and near-adjacent elements.
1.4 This test method uses inter-element correction factors calculated from XRF theory, the fundamental parameters (FP) approach, or best fit regression.
1.5 Samples containing higher concentrations than shown in Table 1 must be diluted to bring the elemental concentration of the diluted material within the scope of this test method.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6.1 The preferred concentrations units are mg/kg for vanadium and nickel.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
 

Product Details

Published:
11/01/2023
Number of Pages:
7
File Size:
1 file , 290 KB
Redline File Size:
2 files , 380 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. ASTM D8252-23

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    Standard Test Method for Vanadium and Nickel in Crude and Residual Oil by X-ray Spectrometry

    • Most Recent

  2. ASTM D8252-19e1


    Standard Test Method for Vanadium and Nickel in Crude and Residual Oil by X-ray Spectrometry

    • Historical Version

  3. ASTM D8252-19


    Standard Test Method for Vanadium and Nickel in Crude and Residual Oil by X-ray Spectrometry

    • Historical Version