BS ISO 18488:2015规定了测定应变硬化模量的方法 这是一种测量聚乙烯抗慢速裂纹扩展的方法。应变硬化模量由模压试样的应力-应变曲线获得。 本国际标准描述了如何进行此类测量以及如何测量应变 硬化模量应根据该曲线确定。所需设备的详细信息、精度、， 并给出了生成有意义数据的样本准备。本国际标准提供的方法适用于所有类型的聚乙烯，独立 从制造工艺来看，共单体、催化剂类型，均用于管道和管件 应用。注:该方法可用于其他应用的材料。交叉引用:ISO 527-1ISO 7500-1ISO 9513ISO 37ISO 16241购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS ISO 18488:2015 specifies a method for the determination of the strain hardening modulus which is used as a measure for the resistance to slow crack growth of polyethylene.The strain hardening modulus is obtained from stress-strain curves on compression moulded samples. This International Standard describes how such measurement is performed and how the strain hardening modulus shall be determined from such a curve. Details of the required equipment, precision, and sample preparation for the generation of meaningful data are given.This International Standard provides a method that is valid for all types of polyethylene, independent from the manufacturing technology, comonomer, catalyst type, that are used for pipes and fittings applications.NOTE This method could be developed for materials for other applications.Cross References:ISO 527-1ISO 7500-1ISO 9513ISO 37ISO 16241All current amendments available at time of purchase are included with the purchase of this document.