ISO 20884:2011 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

标准编号：ISO 20884:2011

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：2011-04

标准范围

ISO 20884:2011规定了一种波长色散X射线荧光（WDXRF）测试方法，用于测定5mg/kg至500mg/kg的液体均质汽车燃料的硫含量，其最大氧含量为3.7%（m/m）。该产品范围涵盖含有高达约10%(V/V)脂肪酸甲酯(FAME)的柴油和含有高达约10%(V/V)乙醇的车用汽油。氧含量较高的产品显示出显著的基质效应，例如用作生物柴油的FAME。然而，当遵循相应的程序时，可以分析FAME。其他产品可以用该测试方法进行分析。然而，ISO 20884:2011尚未建立上述产品以外产品的精密度数据。

ISO 20884:2011 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 10 % (V/V) fatty acid methyl ester (FAME) and motor gasolines containing up to about 10 % (V/V) ethanol.Products with higher oxygen content show significant matrix effects, e.g. FAME used as biodiesel. Nevertheless, FAME may be analysed when the corresponding procedures are followed.Other products may be analysed with this test method. However, precision data for products other than those mentioned have not been established for ISO 20884:2011.

标准预览图