兑水 发表于 2009-10-12 08:20:18

ASTM D 4794-1994 用气相色谱法测定纤维素醚产品中羟乙基替代...

D4794-94(2003) Standard Test Method for Determination of Ethoxyl or Hydroxyethoxyl Substitution in Cellulose Ether Products by Gas Chromatography
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