标准摘要
[中文适用范围]： 确定各种温度下（特别是低于 0 ℃）扭转刚度的通用方法的规范。 在施加任意固定时间的负载后，使用指定的测试设备观察扭矩和偏转角。 该程序在单一温度下或在为待测材料指定的范围内选定的温度间隔下使用。 扭转刚度表示为每个温度下的表观扭转弹性模量。 [外文原描述]： Specification of a general method for the determination of the stiffness in torsion at various temperatures, particularly below 0 °C. An observation of torque and angle of deflection is made after an arbitrarily fixed time of load application, using the specified testing apparatus. This procedure is employed at a single temperature or at selected temperature intervals over a range specified for the material to be tested. The stiffness in torsion is expressed as the apparent torsional modulus of elasticity for each temperatur.
英文名称Plastics — Determination of stiffness in torsion of flexible materials — Part 1: General method