美利体育登录入口官网:DIN EN ISO 24024-2:2021-05 塑料 - 氯乙烯均聚物和共聚物树脂 - 第 2 部分:测试样品的制备和性能测定(ISO 24024-2:2021)
Plastics - Homopolymer and copolymer resins of vinyl chloride - Part 2: Preparation of test samples and determination of properties (ISO 24024-2:2021); German version EN ISO 24024-2:2021