ASTM D4274-2011 标准详情
- 标准号:ASTM D4274-2011
- 中文标题:试验聚氨酯原材料的标准试验方法- 多元醇中氢氧基数目的测定
- 英文标题:standard test methods for testing polyurethane raw materials: determination of hydroxyl numbers of polyols
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2011-02-01
1.1 THESE TEST METHODS MEASURE THE HYDROXYL GROUPS INPOLYESTER AND POLYETHER POLYOLS CONTAINING PRIMARY AND SECONDARY HYDROXYL GROUPS. THEY ALSO APPLY TO MANY OTHER HYDROXYL-CONTAINING SUBSTANCES.1.1.1 TEST METHOD A—ACETIC ANHYDRIDE PRESSURE BOTTLE,R
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