1.1 这些试验方法涵盖了化学成分在以下范围内的锌和锌合金的化学分析 表1 。 1.2 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。 1.3 这些测试方法如下所示: 章节 EDTA滴定法测定铝（0.5至4.5 %) 10– 17 铝、镉、铜、铁、铅和镁 原子吸收光谱法 18– 28 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。 第节中给出了具体的预防说明 6. 。 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 这些用于锌金属和合金化学分析的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 zinc and zinc alloys having chemical compositions within the limits of Table 1 . 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 These test methods appear as follows: Sections Aluminum by the EDTA Titrimetric Method (0.5 to 4.5 %) 10 – 17 Aluminum, Cadmium, Copper, Iron, Lead, and Magnesium by the Atomic Absorption Spectrometry Method 18 – 28 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. Specific precautionary statements are given in 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 for the chemical analysis of zinc metals and alloys 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.