IP 532: Determination of the sulfur content of automotive fuels - Polarized X-ray fluorescence spectrometry method

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  • Method adopted/last revised:
  • Method reapproved: 2022
  • Status: Current
  • First printed in STM books: 2010

This standard specifies a method using a polarized excitation XRF spectrometer (P-XRF) for the determination of total sulfur content of automotive fuels such as unleaded petrol, diesel fuel and other distillates, in the range from 6 mg/kg to 50 mg/kg. A fundamental assumption in this standard is that the standard and sample matrix is well matched. Matrix mismatch can be caused by C/H ratio differences between samples and standards or by the presence of other heteroatoms. The values stated in either SI units or angstrom units are to be regarded separately as standard.

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