BS ISO 14899-2001 塑料制品.聚氨酯生产用多元醇.碱度测定

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标准号:BS ISO 14899-2001
中文标准名称:塑料制品.聚氨酯生产用多元醇.碱度测定
英文标准名称:Plastics - Polyols for use in the production of polyurethane - Determination of basicity
标准类型:G31
发布日期:2001/5/15 12:00:00
实施日期:2001/5/15 12:00:00
中国标准分类号:G31
国际标准分类号:83.080.20
适用范围: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.

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