1.1 这些试验方法包括测定电弧炉用石墨电极芯的表观孔隙率、表观比重和体积密度。（另请参见 C559型 和 C838 .) 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准无意解决与其使用相关的安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 3.1 这些测试方法的结果可用于电极制造期间或用户所在地的质量控制或质量保证检查。这些方法的结果往往对算子敏感；因此，在进行试验时必须小心，以获得可重复的结果。

1.1 These test methods cover the determination of apparent porosity, apparent specific gravity, and bulk density of cores taken from graphite electrodes manufactured for use in electric arc furnaces. (See also C559 and C838 .) 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 3.1 The results of these test methods can be used as a quality control or quality assurance check of electrodes either during their manufacture or at the user's location. The results of these methods tend to be operator-sensitive; therefore, care must be taken in the execution of the test in order to obtain reproducible results.