標(biāo)準(zhǔn)號：ISO 2554-1997
中文標(biāo)準(zhǔn)名稱：塑料 不飽和聚酯樹脂 羥基值的測定
英文標(biāo)準(zhǔn)名稱：Plastics - Unsaturated polyester resins - Determination of hydroxyl value
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：G31
國際標(biāo)準(zhǔn)分類號：83.080.10
適用范圍：This International Standard specifies a method for determining the hydroxyl value of unsaturated polyester resins.In fact, this method determines the difference between the hydroxyl value and the acid value; it is therefore necessary to determine the total acid value separately, in order to calculate the hydroxyl value.NOTE 1 The hydroxyl value of saturated polyester resins (for example, polyester resin used for the manufacture of polyurethanes and polymeric plasticizers) and of certain types of alkyd resins may also be determined by this method.