本文件规定了基于使用振荡流变仪测量剪切储能模量来确定弹性指数的程序，确立了一般原则，并给出了测量性能指南。弹性指数适用于所有热塑性材料和粘弹性材料，对于这些材料而言，弹性性能是一个关键的应用性能。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies a procedure for the determination of an elasticity index based on measurements of the shear storage modulus using oscillatory rheometers, establishes general principles, and gives guidelines for performance of measurements. The elasticity index is applicable to all thermoplastics and viscoelastic materials for which the elastic behaviour is a crucial application property.All current amendments available at time of purchase are included with the purchase of this document.