NF T51-785-1*NF ISO 182-1:1993 塑料.化合物、聚乙烯共聚物基产品、衍化为氯化氢的共聚物及高温下的其他酸性产品的倾向性测定.第1部分:刚果红测定法
Plastics. Determination of the tendency of compounds and products based on vinyl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevated temperatures. Part 1 : congo red method.