标准摘要
[中文适用范围]： 本国际标准规定的方法测量可溶于冰醋酸并与高氯酸反应的多醇中的基本成分。已通过该方法评估了含氮量为0.3%至10%的样品。该方法适用于用于聚氨酯反应的胺基多醇、聚醚多醇和聚醚多醇混合物。结果是批次间一致性的衡量标准，可用于估计聚氨酯反应中的反应性。 也可以以每克样品中碱的当量表示结果。 注：该方法在技术上与ASTM D 6979中的方法等效。 [外文原描述]： The method specified in ISO 25761:2014 measures the basic constituents in polyols that are soluble in glacial acetic acid and reactive with perchloric acid. Samples containing 0,3 % to 10 % of nitrogen have been evaluated by this method. The method is applicable to amine-based polyols, polyether polyols and polyether polyol blends that are used in polyurethane reactions. The results are measures of batch-to-batch uniformity and may be used to estimate reactivity in polyurethane reactions.
英文名称Plastics — Polyols for use in the production of polyurethanes — Determination of basicity (total amine value), expressed as percent nitrogen