1.1 这些测试方法包括石墨的化学分析。 1.2 分析程序按以下顺序出现: 小节 硅钼蓝（比色）试验方法 9 到 15 铁由 o -菲咯啉（比色）试验方法 16 到 22 钙的高锰酸盐（比色）试验方法 23 到 29 用2-奎尼嗪磺酸试验方法测定铝 30 到 36 用过氧化氢（比色法）测试钛 37 到 44 用3,3′-二甲基萘啶测定钒（比色法） 试验方法 45 到 52 用姜黄素-草酸（比色）试验方法测定硼 53 到 60 1.3 最终溶液中所需元素的首选浓度、灵敏度极限和结果精度如所示 表1 . 1.4 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。 1.5 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。 见56。 1用于具体的警告声明。 1.6 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 这些测试方法为测量石墨中某些微量元素的浓度提供了一种实用方法。石墨的许多最终用途要求其不含可能与某些核应用不兼容的元素。 其他元素污染会影响氧化降解速率。 4.2 这些测试方法允许用最少的昂贵设备测量微量污染物。大多数实验室都可以使用比色程序。 4.3 其他仪器分析技术也可用，能够在一次运行中同时定量分析76种稳定元素，检测极限在百万分之一范围内。目前正在开发使用辉光放电质谱（GDMS）、电感耦合等离子体光发射光谱（ICP）对石墨中杂质进行元素分析的标准- OES），燃烧离子色谱法（CIC）。

1.1 These test methods cover the chemical analysis of graphite. 1.2 The analytical procedures appear in the following order: Sections Silicon by the Molybdenum Blue (Colorimetric) Test Method 9 to 15 Iron by the o -Phenanthroline (Colorimetric) Test Method 16 to 22 Calcium by the Permanganate (Colorimetric) Test Method 23 to 29 Aluminum by the 2-Quinizarin Sulfonic Acid Test Method 30 to 36 Titanium by the Peroxide (Colorimetric) Test Method 37 to 44 Vanadium by the 3,3′-Dimethylnaphthidine (Colorimetric) Test Method 45 to 52 Boron by the Curcumin-Oxalic Acid (Colorimetric) Test Method 53 to 60 1.3 The preferred concentration of sought element in the final solution, the limits of sensitivity, and the precision of the results are given in Table 1 . 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. See 56.1 for specific caution statement. 1.6 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 These test methods provide a practical way to measure the concentration of certain trace elements in graphite. Many end uses of graphite require that it be free of elements which may be incompatible with certain nuclear applications. Other elemental contamination can affect the rate of oxidative degradation. 4.2 These test methods allow measurement of trace amounts of contaminants with a minimal amount of costly equipment. The colorimetric procedures used are accessible to most laboratories. 4.3 Other instrumental analysis techniques are available, capable of simultaneous quantitative analysis of 76 stable elements in a single run, with detectability limits in the parts per million range. Standards are currently being developed for elemental analysis of impurities in graphite using glow discharge mass spectrometry (GDMS), inductively coupled plasma optical emission spectroscopy (ICP-OES), combustion ion chromatography (CIC).