兑水 发表于 2009-10-5 10:39:21

ASTM D 3433-1999 气相色谱法测定氨基甲酸乙酯预聚物和涂料溶...

D3432-89(1996)e1 Standard Test Method for Unreacted Toluene Diisocyanates in Urethane Prepolymers and Coating Solutions by Gas Chromatography
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