标准摘要
[中文适用范围]： 根据偏转角在 55° 至 65° 之间的方法的特殊情况，对上述塑料应用 ISO 458-1 中的通用方法。 根据扭转刚度的三个特征值的温度；被测材料应确定300MPa、23MPa和4MPa。 [外文原描述]： Application of the general method in ISO 458-1 for the above mentioned plastics according to the special case of the method with an angle of deflection between 55 and 65 . The temperatures according to three characteristic values of the torsion stiffness; 300 MPa, 23 MPa and 4 MPa are to be determined for the material under test.
英文名称Plastics — Determination of stiffness in torsion of flexible materials — Part 2: Application to plasticized compounds of homopolymers and copolymers of vinyl chloride