标准编号：ISO 20884:2019
中文名称：石油产品 汽车燃料的硫含量测定 波长色散X射线荧光光谱法
英文名称：Petroleum products — Determination of sulfur content of automotive fuels — Wavelength-dispersive X-ray fluorescence spectrometry
发布日期：2019-08
标准范围
This document specifies a wavelength-dispersive X-ray fluorescence (WDXRF) test method for the
determination of the sulfur content of liquid, homogeneous automotive fuels from 5 mg/kg to 500 mg/
kg, which have a maximum oxygen content of 3,7 % (m/m). This product range covers:
— diesel fuels containing up to about 30 % (V/V) fatty acid methyl esters (FAME),
— motor gasolines containing up to about 10 % (V/V) ethanol,
— synthetic fuels such as hydrotreated vegetable oil (HVO) and gas to liquid (GTL) having sulfur
contents in the range of 5 mg/kg to 45 mg/kg.
Products with higher oxygen content show significant matrix effects, e.g. pure FAME used as biodiesel,
nevertheless, pure FAME can be analysed when the corresponding procedures are followed (see 5.3
and 8.1).
Other products can be analysed with this test method, though precision data for products other than
those mentioned have not been established for this document.
NOTE 1 Sulfur contents higher than 500 mg/kg can be determined after sample dilution, however, the
precision was not established for diluted samples.
NOTE 2 For the purposes of this document, “% (m/m)” and “% (V/V)” are used to represent the mass fraction, w, and the volume fraction, φ, of a material respectively.This document specifies a wavelength-dispersive X-ray fluorescence (WDXRF) test method for the
determination of the sulfur content of liquid, homogeneous automotive fuels from 5 mg/kg to 500 mg/
kg, which have a maximum oxygen content of 3,7 % (m/m). This product range covers:
— diesel fuels containing up to about 30 % (V/V) fatty acid methyl esters (FAME),
— motor gasolines containing up to about 10 % (V/V) ethanol,
— synthetic fuels such as hydrotreated vegetable oil (HVO) and gas to liquid (GTL) having sulfur
contents in the range of 5 mg/kg to 45 mg/kg.
Products with higher oxygen content show significant matrix effects, e.g. pure FAME used as biodiesel,
nevertheless, pure FAME can be analysed when the corresponding procedures are followed (see 5.3
and 8.1).
Other products can be analysed with this test method, though precision data for products other than
those mentioned have not been established for this document.
NOTE 1 Sulfur contents higher than 500 mg/kg can be determined after sample dilution, however, the
precision was not established for diluted samples.
NOTE 2 For the purposes of this document, “% (m/m)” and “% (V/V)” are used to represent the mass fraction, w, and the volume fraction, φ, of a material respectively.
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