本文件规定了以下方法: a） 测定粉碎至<212µm的焦炭相对于水的真实相对密度；注“真实相对密度”随所用置换液的不同而变化。 b） 测定焦炭的表观相对密度，即一体积干焦炭的质量与等体积水的质量之比；c） 计算焦炭的孔隙率。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies methods for a) determining the true relative density of coke, crushed to <212 µm, in relation to water;NOTE"True relative density" varies according to the displacement liquid used. b) determining the apparent relative density of coke, i.e. the ratio of the mass of a volume of dry coke to the mass of an equal volume of water;c) calculating the porosity of the coke.All current amendments available at time of purchase are included with the purchase of this document.