1.1 这些试验方法适用于化学成分在以下范围内的精炼镍和其他形式金属镍的化学分析: 要素 质量分数，% 锑，小于 0.005 砷，小于 0.005 铋，小于 0.01 镉，小于 0.0025 碳，最大值 0.03 钴，最大值 1 铜，最大值 1 氢气，最大值 0.003 铁，最大值 0.15 铅，小于 0.01 锰，小于 0.20 镍，最小值 98 氮气，小于 0.50 氧气，小于 0.03 磷，小于 0.005 硒，低于 0.0010 硅，小于 0.005 银色，小于 0.01 硫，最大值 0.01 碲，小于 0.0010 铊，小于 0.0010 锡，小于 0.005 锌，小于 0.015 1.2 这些试验方法可用于通过以下方法确定以下元素: 试验方法 小节 石墨炉原子吸收光谱法测定锑、砷、铋、镉、铅、硒、银、碲、锡和铊 21 – 31 火焰原子吸收光谱法测定铋、镉、钴、铜、铁、铅、锰、银和锌 9 – 20 生成硫化氢后用亚甲基蓝分光光度法测定硫 32 – 42 1.3 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. 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）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 有关具体预防措施，请参阅第节 6. . 1.5 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 这些测试方法主要用于测试精炼镍金属是否符合成分规范。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。预计分析工作将在适当的质量控制实践下，在配备适当的实验室中进行。

1.1 These test methods apply to the chemical analysis of refined nickel and other forms of metallic nickel having chemical compositions within the following limits: Element Mass Fraction, % Antimony, less than 0.005 Arsenic, less than 0.005 Bismuth, less than 0.01 Cadmium, less than 0.0025 Carbon, max 0.03 Cobalt, max 1.00 Copper, max 1.00 Hydrogen, max 0.003 Iron, max 0.15 Lead, less than 0.01 Manganese, less than 0.20 Nickel, min 98.0 Nitrogen, less than 0.50 Oxygen, less than 0.03 Phosphorus, less than 0.005 Selenium, less than 0.0010 Silicon, less than 0.005 Silver, less than 0.01 Sulfur, max 0.01 Tellurium, less than 0.0010 Thallium, less than 0.0010 Tin, less than 0.005 Zinc, less than 0.015 1.2 These test methods may be used to determine the following elements by the methods indicated below: Test Methods Sections Antimony, Arsenic, Bismuth, Cadmium, Lead, Selenium, Silver, Tellurium, Tin, and Thallium by the Graphite Furnace Atomic Absorption Spectrometric Method 21 – 31 Bismuth, Cadmium, Cobalt, Copper, Iron, Lead, Manganese, Silver, and Zinc by the Flame Atomic Absorption Spectrometric Method 9 – 20 Sulfur by the Methylene Blue Spectrophotometric Method After Generation of Hydrogen Sulfide 32 – 42 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific precautions, see Section 6 . 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 are primarily intended to test refined nickel metal 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 the analytical work will be performed in a properly equipped laboratory under appropriate quality control practices.