兑水 发表于 2009-10-2 12:04:48

ASTM D 2503-1992 蒸气热电测量法测定烃类相对分子量的试验方法

D2503-92(2002)e1 Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure
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