标准摘要
[中文适用范围]： 规定了一种重量分析方法，其原理在于称量沥青测试部分在沸腾指定时间后不溶于甲苯的部分。 [外文原描述]： Specifies a gravimetric method, the principle of which consists in weighing the fraction of a test portion of pitch which is insoluble in toluene after boiling for a specified period.
英文名称Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of content of toluene-insoluble material