ISO 3924:2019 石油产品 沸腾范围分布的测定 气相色谱法

标准编号：ISO 3924:2019

中文名称：石油产品 沸腾范围分布的测定 气相色谱法

英文名称：Petroleum products — Determination of boiling range distribution — Gas chromatography method

发布日期：2019-07

标准范围

本文件规定了确定石油产品沸程分布的方法。该方法适用于由本文件确定的在大气压下最终沸点为538℃或更低的石油产品和馏分。本文件不适用于汽油样品或汽油组分。该方法仅限于沸点范围大于55℃且蒸气压足够低以允许在环境温度下取样的产品。该文件描述了两个程序。a)程序A允许更多选择柱和分析条件，例如填充柱和毛细管柱以及除火焰离子化检测器之外的热导率检测器。分析时间范围为14分钟至60分钟。b)程序B仅限于三根毛细管柱，并且不需要样品稀释。分析时间减少到约8分钟。这两种方法都成功地应用于含有高达20%（体积分数）的脂肪酸甲酯（FAME）的样品。注:出于本文件的目的，术语“%(质量分数)”和“%(体积分数)”用于表示材料的质量分数(μ)、体积分数(φ)。

This document specifies a method for the determination of the boiling range distribution of petroleum products. The method is applicable to petroleum products and fractions with a final boiling point of 538 °C or lower at atmospheric pressure as determined by this document. This document does not apply to gasoline samples or gasoline components. The method is limited to products having a boiling range greater than 55 °C and having a vapour pressure sufficiently low to permit sampling at ambient temperature.The document describes two procedures.a) Procedure A allows a larger selection of columns and analysis conditions, such as packed and capillary columns as well as a thermal conductivity detector in addition to the flame ionization detector. Analysis times range from 14 min to 60 min.b) Procedure B is restricted to only three capillary columns and requires no sample dilution. The analysis time is reduced to about 8 min.Both procedures have been successfully applied to samples containing fatty acid methyl esters (FAME) up to 20 % (volume fraction).NOTE For the purposes of this document, the terms "% (mass fraction)" and "% (volume fraction)" are used to represent the mass fraction (μ), the volume fraction (φ) of a material.

标准预览图