YS/T 63.25-2012 铝用炭素材料检测方法 第25部分:无压下底部炭块钠膨胀率的测定 Carbonaceous materials used in the production of aluminiumPart 25:Cathode blocks — Determination of expansion due to sodium penetration without application of pressure
Carbonaceous materials used in the production of aluminiumPart 25:Cathode blocks — Determination of expansion due to sodium penetration without application of pressure