prEN ISO 182-3 塑料 测定基于氯乙烯均聚物和共聚物的化合物和产品在高温下释放氯化氢和任何其他酸性产物的趋势 第3部分:电导法(ISO/DIS 182-3:2022)
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 3: Conductometric method (ISO/DIS 182-3:2022)
The principle of the method is maintaining a test portion of the PVC at an agreed temperature in a nitrogen gas stream, absorbing the hydrogen chloride evolved in a given amount of...