This International Standard specifies a method for the measurement of trace amounts of basic materials present in polyether polyols used in the production of polyurethanes. It is important to know the trace amount of basicity in a polyol to prevent gelation of the reaction mass during the production of polyurethane prepolymers. It is also useful to control the basicity in polyols used for polyurethane production to assure consistent and reproducible reaction behaviour. This method is suitable for quality control, as a specification test and for research. The applicable range is 0 μg to 50 μg/g, expressed as KOH. The method is not applicable to amine-based polyols. The values may be reported as CPR (controlled polymerization rate) units.
BS ISO 14899-2001由英国标准学会 GB-BSI 发布于 2001-05-15,并于 2001-05-15 实施。
BS ISO 14899-2001 在中国标准分类中归属于: G31 合成树脂、塑料基础标准与通用方法,在国际标准分类中归属于: 83.080.20 热塑性塑料。
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