DIN 53774-5:1977 塑料着色剂检验 无增塑聚氯乙烯模塑化合物着色剂检验 第5部分:连轧试验的热稳定性测定
Testing of colouring materials in plastics; testing of colouring materials in unplasticized polyvinyl chloride moulding compounds; determination of thermal stability in the long-term milling test