兑水 发表于 2009-10-14 14:10:15

ASTM D 5070-1990 用电位测量滴定法对纺织品软化剂中合成季铵...

D5070-90(1997) Standard Test Method for Synthetic Quaternary Ammonium Salts in Fabric Softeners by Potentiometric Titrations
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