ASTM D4274-1999 标准详情
- 标准号:ASTM D4274-1999
- 中文标题:聚氨基甲酸乙酯原料的试验方法:多元醇的羟基数的测定
- 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:1999
1.1 These test methods measure the hydroxyl groups in polyester and polyether polyols. They also apply to many other hydroxyl-containing substances. 1.1.1 Test Method A-Acetic Anhydride Pressure Bottle, recommended for polyesters. 1.1.2 Test M
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