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Sulphur Analysis by WD-XRF ASTM D2622

RIGAKU - WD-XRF

Standard Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry – WD-XRF.

RIGAKU offers a selection of WD-XRF solutions which comply with ASTM D2622. A full application note is available on request demonstration the performance of the Micro Z-ULS, the Supermini 200 and the ZSX Primus range. 

These application note demonstrates quantitative analysis of sulfur in petroleum products according to ASTM D2622-16 on Rigaku ZSX Primus, a wavelength dispersive X-ray fluorescence (WDXRF) spectrometer.

The equipment specified for Test Method D2622 is restricted to WD-XRF and does not include ED-XRF and therefore this test method is only applied in specific applications. The alternative test method, such as Test Method D4294 offers more flexibility from an instrument choice point of view.

What is ASTM D2622?

ASTM D2622 is a standard test method for the measurement of Sulfur in petroleum products. This method is particularly used for measuring low levels of S in Ultra Low Sulfur Diesel or ULSD where the concentrations have to be below 10ppm. However this test method can be applied for Sulfur concentrations down to 3 ppm or mg/kg  and up to 4.6%. 

What samples can be analysed under ASTM D2622?

This test method is designed to cover the measurement of total sulfur in petroleum and petroleum products that are single-phase and either liquid at ambient conditions, liquefiable with moderate heat, or soluble in hydrocarbon solvents.

The range of applications include diesel fuel, jet fuel, kerosene, other distillate oil, biodiesel, residual oil, lubricating base oil, hydraulic oil, crude oil, unleaded gasoline, gasoline-ethanol blends, and naphtha.

Are there alternative XRF methods to ASTM D2622 for measuring Sulfur in Petroleum Products?

There are a number of XRF based methods for measuring Sulfur in petroleum products. These include:

  • ASTM D4294: Standard Test Method for Sulfur in Petroleum and Petroleum Products by Energy Dispersive X-ray Fluorescence Spectrometry
  • ISO 13032: Petroleum products — Determination of low concentration of sulfur in automotive fuels — Energy-dispersive X-ray fluorescence spectrometric method
  • ISO 20847:2004 Petroleum products — Determination of sulfur content of automotive fuels — Energy-dispersive X-ray fluorescence spectrometry
  • IP496: Petroleum products – Determination of the sulfur content of automotive fuels – Energy-dispersive X-ray fluorescence spectrometry
  • IP336: Petroleum products – Determination of sulfur content – Energy-dispersive-X-ray fluorescence method
  • ASTM D7220: Standard Test Method for Sulfur in Automotive, Heating, and Jet Fuels by Monochromatic Energy Dispersive X-ray Fluorescence Spectrometry

Are there any non XRF alternatives to ASTM D2622 for measuring Sulfur in Petroleum Products?

WD-XRF and ED-XRF are not the only approved methods for testing Sulfur in petroleum products. The most common alternative method is based on Ultraviolet Fluorescenceor UVF and is a combustion method.

ASTM D5453 Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence

SciMed offers a complete range of solutions for the determination of Sulfur in petroleum products.

What to do next?

We have provided some additional links below to more content about these applications, however if you would like to receive a details application notes or talk to one of the team about the determination of Suflur in Petroleum, please contact us by the means below.

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