DIN EN 15470-2008 液化石油气.溶解残留物的测定.高温气相色谱法

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                   【英文标准名称】:     Liquefied petroleum gases - Determination of dissolved residues - High temperature Gas chromatographic method; English version of DIN EN 15470:2008-02            【原文标准名称】:     液化石油气.溶解残留物的测定.高温气相色谱法            【标准号】:     DIN EN 15470-2008            【标准状态】:     现行            【国别】:     德国            【发布日期】:     2008-02    【实施或试行日期】: 【发布单位】: 德国标准化学会(DE-DIN)【起草单位】: 【标准类型】: ()【标准水平】: ()【中文主题词】: 定义;燃料;气相色谱法;高温;液化石油气;液体燃料;LPG法;材料试验;数学计算;有机化合物;石油产品;残留试验;残留物;抽样方法;试验设备;试验规程;测试;试验条件【英文主题词】: Definition;Definitions;Fuels;Gas chromatography;High temperatures;Liquefied petroleum gas;Liquid fuels;LPG method;Materials testing;Mathematical calculations;Organic compoundsetroleum products;Residue tests;Residues;Sampling methods;Test equipment;Test procedures;Testing;Testing conditions【摘要】: This European Standard specifies a method for determining the dissolved residual matter in liquefiedpetroleum gases (LPG), in the range of 40 mg/kg to 100 mg/kg. Higher concentrations can be determined byadjusting the sample size.The dissolved residue is the amount of organic compounds that are detectable by gas chromatography afterevaporation of the sample at ambient temperature and then in an oven at 105 ℃.This method is not suitable for detecting solid materials or for possibly high molecular weight polymers(> 1 000 g/mol).The advantages of this method are that a small quantity of LPG (50 g to 75 g) is required and the qualitativedata available may indicate the origin of the residues (gas-oil, lubricants, plasticizers, etc.).This method has been developed as a potential replacement of the commonly used method described inEN ISO 13757 [1], but is safer and more environmentally friendly. In addition, this new method is moreaccurate.The precision data of the method have been determined from 20 mg/kg to 100 mg/kg. For a higher content ofresidue, the precision has not been tested, but remains of lesser interest as typical specifications are in therange of 20 mg/kg to 100 mg/kg.NOTE     An alternative European Standard, EN 15471 [2], specifies a gravimetric method, which has the same scopeand slightly worst fidelity data.【中国标准分类号】: E31【国际标准分类号】: 75_160_20【页数】: 17P.;A4【正文语种】: 英语