标准摘要
[中文适用范围]： 用于制备铝生产电极的沥青密度是衡量其质量一致性的一个特性。 了解该参数对于优化使用音调至关重要。 测定是通过在真空脱气后在25℃的比重瓶中测量密度来进行的。 [外文原描述]： The density of pitch used for preparation of electrodes for the production of aluminium is a property which gives a guide to its consistency of quality. Knowledge of this parameter is essential for optimum use of pitch. The determination is carried out by measuring the density in a pyknometer at 25 °C, after degassing under vacuum.
英文名称Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of density — Pycnometric method