BS EN 15471-2007 液化石油气.溶解残留物的测定.高温重量分析方法

标准号：BS EN 15471-2007
中文标准名称：液化石油气.溶解残留物的测定.高温重量分析方法
英文标准名称：Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method
标准类型：E31
发布日期：2007/12/31 12:00:00
实施日期：2007/12/31 12:00:00
中国标准分类号：E31
国际标准分类号：75.160.10
引用标准：EN ISO 4257
适用范围：This Standard specifies a method, for determining the residual matter in liquefied petroleum gases (LPG),which remains after evaporation at 105 °C. This material represents those products deposited in car LPGvaporizers that are subject to a temperature equal to or greater than the boiling temperature of water. Therange of determination extends from 50 mg/kg to 100 mg/kg. Higher concentrations can be determined byadjusting the sample size.The precision data of the method have been determined from 20 mg/kg to 100 mg/kg, with samples amountfrom 100 g to 50 g.This method has been developed as a potential replacement of the commonly used method EN ISO 13757 [1],The advantages of the method are that a small quantity of LPG (100 ml) is required.NOTE An alternative European Standard, EN 15470 [2], with the same scope, specifies a gas chromatographymethod with slightly better fidelity.WARNING — Use of this method involves hazardous materials and operations. It is the responsibilityof the user to establish appropriate safety and health precautions. All handling must be performed in afume hood.