ISO 182-1:1990 塑料.化合物和氯乙烯共聚物、均聚物在高温中分解出氯化氢和其它酸性物的趋势测定.第1部分：刚果红法
标准编号：ISO 182-1:1990
中文名称：塑料.化合物和氯乙烯共聚物、均聚物在高温中分解出氯化氢和其它酸性物的趋势测定.第1部分：刚果红法
英文名称：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 temperature
发布日期：1990-12
标准范围
主要用于在PVC化合物的制造和转化过程中进行简单快速的质量控制测试。适用于有色化合物。不建议用于干混合物形式的化合物。测定是在PVC化合物的样品上进行的，该样品在静止空气中保持在约定的温度，直到保持在其上方的刚果红纸的颜色从红色变为蓝色。如果使用通用指示纸，则颜色变化对应于pH 3。将颜色变化所需的时间作为稳定性时间ts。与ISO 182-2一起，取代并取消ISO建议R 182:1970。
Intended primarily as a simple and rapid quality-control test during the manufacture and conversion of PVC compounds. Suitable for coloured compounds. Is not recommended for compounds in the form of dry blends. The determination is carried out on a sample of the PVC compound which is maintained at an agreed temperature in still air until the colour of a Congo red paper held above it changes from red to blue. If universal indicator paper is used, the colour change is that corresponding to pH 3. The time required for the colour change is taken to be the stability time, ts. Together with ISO 182-2, replaces and cancels ISO Recommendation R 182:1970.
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