兑水 发表于 2009-10-17 11:23:14

ASTM D 5523-2004 单体芳香异氰酸酯中水解氯银量滴定法测定...

D5523-94(1999)e1 Standard Test Method for Polyurethane Raw Materials Acidity by Argentometric Determination of Hydrolyzable Chlorine in Monomeric, Aromatic Isocyanates
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