1.1 这些试验方法涵盖了化学成分在以下范围内的锰铜合金的化学分析: 要素 范围 % 铜 68.0至72.0 锰 28.0至32.0 碳 最大0.03 铁 最大0.01 磷 最大0.01 硅 最大0.05 硫黄 最大0.01 1.2 测试方法按以下顺序出现: 小节 1,10-菲咯啉铁 分光光度法 [0.003 % 至0.02 %] 11 – 20 （乙基二硝基）锰 四乙酸（EDTA）- 反滴定法[28 % 至32 %] 21 – 27 磷由 二钒磷酸钼 萃取分光光度法 [0.002 % 至0.014 %] 28 – 38 1.3 单位- 以国际单位表示的数值视为标准值。本标准不包括其他计量单位。 1.4 本标准并不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（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 金属和合金化学分析的这些试验方法主要用于测试此类材料是否符合成分规范。 假设所有使用这些试验方法的人员都是经过培训的分析员，能够熟练、安全地执行普通实验室程序。预计工作将在设备齐全的实验室进行。

1.1 These test methods cover the chemical analysis of manganese-copper alloys having chemical compositions within the following limits: Element Range, % Copper 68.0 to 72.0 Manganese 28.0 to 32.0 Carbon 0.03 max Iron 0.01 max Phosphorus 0.01 max Silicon 0.05 max Sulfur 0.01 max 1.2 The test methods appear in the following order: Sections Iron by the 1,10-Phenanthroline Spectrophotometric Method [0.003 % to 0.02 %] 11 – 20 Manganese by the (Ethylenedinitrilo) Tetraacetic Acid (EDTA)— Back-Titrimetric Method [28 % to 32 %] 21 – 27 Phosphorus by the Molybdivanadophosphoric Acid Extraction Spectrophotometric Method [0.002 % to 0.014 %] 28 – 38 1.3 Units— 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 metals and alloys are primarily intended 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.