本文件规定了一种测定在标准试验条件下通过煮沸正庚烷从结晶丙烯塑料中提取的物质百分比的方法。等规指数是通过常规化学萃取作为绝对方法确定的。 根据ISO 19069-1[1]，该方法规定了H、B和R型丙烯塑料的识别和编码。 该方法仅适用于基础聚合物，不适用于混合物。 该方法从规定细度的颗粒形式的固体丙烯塑料开始。交叉引用:ISO 19069-1购买时可用的所有当前修订版均包含在本文件的购买中。

This document specifies a method for determining the percentage of matter which can be extracted from crystalline propylene plastics by boiling n-heptane under standard conditions of testing. Isotactic index is determined by conventional chemical extraction as an absolute method. This method provides for the identification and coding of types H, B and R propylene plastics according to ISO 19069-1[1]. This method is suitable only for base polymers and is not applicable for mixtures. This method starts with solid propylene plastics in the form of particles of specified fineness.Cross References:ISO 19069-1All current amendments available at time of purchase are included with the purchase of this document.