标准摘要
[中文适用范围]： 本国际标准规定了生焦和煅烧石油焦以及类似固体材料（例如电极）密度的测定方法。 本标准也适用于高温沸程的碳氢化合物和其他固体材料。 该方法不适用于石墨化材料。 [外文原描述]： ISO 21687:2007 specifies a method for the determination of the density of green and calcined petroleum coke and similar solid materials (e.g. electrodes). ISO 21687:2007 is also suitable for hydrocarbons with a high-temperature boiling range and for other solid materials. This method is not suitable for graphitized material.
英文名称Carbonaceous materials used in the production of aluminium — Determination of density by gas pyknometry (volumetric) using helium as the analysis gas — Solid materials