ANSI/ASTM D4273-1999 聚氨基甲酸乙酯原材料的试验方法:聚醚多元醇初机羟基含量测定(08.02)

标准号：ANSI/ASTM D4273-1999
中文标准名称：聚氨基甲酸乙酯原材料的试验方法:聚醚多元醇初机羟基含量测定(08.02)
英文标准名称：Method for Testing Polyurethane Raw Materials: Determination of Primary Hydroxyl Contents of Polyether Polyols (08.02)
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：2000/1/18 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：Carbon-13 Nuclear Magnetic Resonance Spectroscopy(carbon-13 NMR), measures the primary hydroxyl content of ethylene oxide-propylene oxide polyethers used in preparing flexible foams. It is best suited for polyethers with primary hydroxyl contents of 10 to 90 %. Note 1 -There is no equivalent ISO standard. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.