DIN ISO 458-2:1995
塑料制品.可弯曲材料的扭曲刚度的测定.第2部分:氯乙烯的均聚物和共聚物的增塑化合物应用 (ISO 458-2:1985)
Plastics - Determination of stiffness in torsion of flexible materials - Part 2: Application to plasticized compounds of homopolymers and copolymers of vinyl chloride (ISO 458-2:1985)