ISO 16152-2005 塑料.聚丙烯中二甲苯可溶物测定

标准号：ISO 16152-2005
中文标准名称：塑料.聚丙烯中二甲苯可溶物测定
英文标准名称：Plastics - Determination of xylene-soluble matter in polypropylene
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.01
适用范围：1 This International Standard specifies a method for determining the mass fraction of a polypropylene homopolymer or copolymer which is soluble in xylene at 25 ℃. 2 A weighed amount of dried sample is dissolved in xylene under reflux conditions, then cooled under controlled conditions and maintained at 25 ℃ to ensure controlled crystallization of the insoluble fraction. 3 The xylene-soluble fraction is then recovered by evaporation of the xylene and determined by weighing the residue. 4 Other materials with solubilities similar to that of the xylene-soluble fraction, such as additives, may interfere with the determination.