标准编号：ISO 16152:2005
中文名称：塑料 聚丙烯中二甲苯可溶物的测定
英文名称：Plastics — Determination of xylene-soluble matter in polypropylene
发布日期：2005-07
标准范围
1This International Standard specifies a method for determining the mass fraction of a polypropylene homopolymer or copolymer which is soluble in xylene at 25 ℃.2A 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.3The xylene-soluble fraction is then recovered by evaporation of the xylene and determined by weighing the residue.4Other materials with solubilities similar to that of the xylene-soluble fraction, such as additives, may interfere with the determination.
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