1.1 这些试验方法包括化学成分在以下范围内的铍的化学分析: 要素 范围 % 铝 0.05  至0.30 铍 97.5   至100 氧化铍 0.3   至3 碳 0.05  至0.30 铜 0.005至0.10 铬 0.005至0.10 铁 0.05  至0.30 镁 0.02  至0.15 镍 0.005至0.10 硅 0.02  至0.15 1.2 本标准中的试验方法包含在以下章节中。 章节 二苯基咔唑分光光度法测定铬的试验方法 [0004 % 至0.04 %] 10– 19 铁的1,10-菲罗啉分光光度法试验方法 [0.05 % 至0.25 %] 20– 29 高碘酸盐分光光度法测定锰 [0008 % 至0.04 %] 30– 39 镍的丁二酮肟分光光度测定方法 [0001 % 至0.04 %] 40– 49 1.3 以国际单位制表示的数值应视为标准。 本标准中不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 金属铍化学分析的这些试验方法主要用于试验此类材料是否符合成分规范的判定方法。 假设所有使用这些测试方法的人都是经过培训的分析员，能够熟练、安全地执行常见的实验室程序。预计工作将在设备齐全的实验室中进行。

1.1 These test methods cover the chemical analysis of beryllium having chemical compositions within the following limits: Element Range, % Aluminum 0.05  to 0.30 Beryllium 97.5   to 100 Beryllium Oxide 0.3   to 3 Carbon 0.05  to 0.30 Copper 0.005 to 0.10 Chromium 0.005 to 0.10 Iron 0.05  to 0.30 Magnesium 0.02  to 0.15 Nickel 0.005 to 0.10 Silicon 0.02  to 0.15 1.2 The test methods in this standard are contained in the sections as follows. Sections Chromium by the Diphenylcarbazide Spectrophotometric Test Method [0.004 % to 0.04 %] 10 – 19 Iron by the 1,10-Phenanthroline Spectrophotometric Test Method [0.05 % to 0.25 %] 20 – 29 Manganese by the Periodate Spectrophotometric Test Method [0.008 % to 0.04 %] 30 – 39 Nickel by the Dimethylglyoxime Spectrophotometric Test Method [0.001 % to 0.04 %] 40 – 49 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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 for the chemical analysis of beryllium metal are primarily intended as referee methods to test such materials for compliance with compositional specifications. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.