Carbonaceous materials for the production of aluminium — Calcined coke and calcined carbon products — Determination of the density in xylene — Pyknometric method
铝生产用碳质材料——煅烧焦炭和煅烧碳制品——二甲苯密度的测定——比重瓶法
The density is meassured at 25 degrees centigrade by a pyknometric method after degassing under vacuum. Calcined coke may be treated with different types of oil in order to avoid the formation of dust during loading and transportation. The present method does not provide for this elemination of traces of oil which may be present in the sample.