1.1 本规程是为电弧炉石墨电极而制定的，涵盖了从电极中获取芯样的程序和设备，其方式既不会损坏电极，也不会妨碍其最初预期的后续使用。然而，最小电极直径受特定应用的影响，必须由用户确定，使用本规程提取芯样不会影响后续使用。电弧炉中使用的石墨电极通常是实心的石墨圆柱体，每端都有加工的螺纹套筒。 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 本标准并非旨在解决与其使用相关的所有安全问题（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。 注1: 以下ASTM标准是有用信息的来源:试验方法 C559型 , C611型 , C651型 , C747 , C1025 和 C1039 . 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====== 4.1 取芯取样是一种可接受的方法，可以在不破坏电极效用的情况下获得试样。 4.1.1 通过本规程获得的试样可供石墨电极的生产商和用户用于进行以下试验: 注1 获得比较物理性质。 4.2 本规程可能不会提供适当尺寸的试样（相对于粒径/样品尺寸比），以确定绝对性能值。

1.1 This practice was developed for electric-arc furnace graphite electrodes, and covers a procedure and equipment for obtaining core samples from electrodes in a manner that does not destroy the electrode nor prevent its subsequent use as originally intended. However, the minimum electrode diameter, for which extraction of a core sample using this practice does not influence subsequent use, is influenced by the particular application and must be determined by the user. Graphite electrodes for use in electric arc furnaces are usually solid cylinders of graphite with threaded sockets machined in each end. 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 all of 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. Note 1: The following ASTM standards are noted as sources of useful information: Test Methods C559 , C611 , C651 , C747 , C1025 , and C1039 . 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 ====== 4.1 Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of the electrode. 4.1.1 Test specimens obtained by this practice can be used by producers and users of graphite electrodes for the purpose of conducting the tests in Note 1 to obtain comparative physical properties. 4.2 This practice may not provide a test specimen of the appropriate size (with respect to particle size/sample dimension ratios) to allow the determination of absolute property values.