ISO 20884-2011
石油产品.机动车燃料的硫含量的测定.波长色散X射线荧光光谱法

Petroleum products - Determination of sulfur content of automotive fuels - Wavelength-dispersive X-ray fluorescence spectrometry

标准号

ISO 20884-2011

发布日期

2011年04月15日

实施日期

废止日期

无

中国标准分类号

E31

国际标准分类号

75.160.30

发布单位

IX-ISO

引用标准

ISO 3170 ISO 3171

被代替标准

ISO 20884-2004 ISO/FDIS 20884-2011

适用范围

WARNING — The use of this International Standard may involve hazardous materials, operations and equipment. This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. This International Standard 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 esters (FAME) and motor gasolines containing up to about 10 % (V/V) ethanol. NOTE 1 Sulfur contents higher than 500 mg/kg can be determined after sample dilution. However, the precision was not established for diluted samples. 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 (see 4.3 and 7.1). Other products may be analysed with this test method. However, precision data for products other than those mentioned have not been established for this International Standard. NOTE 2 For the purposes of this International Standard, the terms “% (m/m)” and “% (V/V)” are used to represent the mass fraction and the volume fraction of a material respectively.

ISO 20884-2011 中可能用到的仪器设备