BS ISO 14900-2001 塑料制品.聚氨酯生产用多元醇.羟基数值测定

标准号：BS ISO 14900-2001
中文标准名称：塑料制品.聚氨酯生产用多元醇.羟基数值测定
英文标准名称：Plastics - Polyols for use in the production of polyurethane - Determination of hydroxyl number
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 two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials. It is necessary to know the hydroxyl content of polyols to properly formulate polyurethane systems. Method A is primarily applicable to readily esterified polyether polyols. It is also recommended for polyols which have significant steric hindrance, such as those based on sugars. Method B is recommended for polyether polyols, polymer polyols and amine-initiated polyols, but may give low results for sterically hindered polyols. Other polyols may be analysed by these methods if precautions are taken to verify applicability. These methods can be used for research and for quality control and specification purposes.