美利体育登录入口官网:SS-EN ISO 305:2019 聚乙烯氯及其相关含氯均聚物和共聚物及其化合物的热稳定性的测定 褪色法(ISO 305:2019)
Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method (ISO 305:2019)