摘要
对国标GB2292—80《煤沥青甲苯不溶物测定方法》改用记时30分钟与不记时观察颜色变化的两种测试方法,进行了实验对比,为充实该实验的标准方法增添了新的内容,提供了参考数据。
The thesis makes a comparison, by experiment, two methods of determing toluene insoluble in coaltar pitch. One is to obtain the experimental result by observing the change of the color within 30 minutes. The other, which is based on national standard GB2292-30, is to get same experimental result while there is no time restrction. Therefore, it enriches the experimental method of national standard GB2292-80, and, at the same time, provides reference data.
出处
《炭素》
1993年第3期34-36,共3页
Carbon
