1.1 这些试验方法涵盖了化学范围在以下范围内的铜合金的化学分析: 2. 要素 成分，% 铝 最大12.0 锑 最大1.0 砷 最大1.0 镉 最大1.5 钴 最大1.0 铜 40.0分钟 铁 最大6.0 领导 最大27.0 锰 最大6.0 镍 最大50.0 磷 最大1.0 硅 最大5.0 硫黄 最大0.1 锡 最大20.0 锌 最大50.0 1.2 试验方法按以下顺序出现: 小节 氨基甲酸乙酯萃取铝- 烯二硝基四乙酸滴定试验方法[2] % 至12 %] 71 – 78 通过组合电沉积重量法和草酰二肼分光光度法测定铜[50] %, 最小值] 10 – 18 铁的1,10-二氮杂菲分光光度试验方法[0.003 % 至1.25 %] 19 – 28 原子吸收光谱法测定铅[0.002 % 至15 %] 90 – 100 用亚乙基二硝基四乙酸（EDTA）滴定试验方法[2.0]测定铅 % 至30.0 %] 29 – 36 丁二酮肟萃取光度法测定镍[0.03 % 至5.0 %] 37 – 46 丁二酮肟重量法测定镍[4 % 至50 %] 55 – 62 原子吸收光谱法测定含银铜中的银[0.01 % 至0.12 %] 101 – 112 锡的碘滴定试验方法[0。 5. % 至20 %] 63 – 70 苯基荧光酮分光光度法测定锡[0.01 % 至1.0 %] 113 – 123 原子吸收光谱法测定锌[0.2] % 至2 %] 79 – 89 用亚乙基二硝基四乙酸（EDTA）滴定法测定锌[2] % 至40 %] 47 – 54 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。 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 这些金属和合金化学分析的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。 预计工作将在配备适当的实验室中进行。

1.1 These test methods cover the chemical analysis of copper alloys having chemical ranges within the following limits: 2 Element Composition, % Aluminum 12.0 max Antimony 1.0 max Arsenic 1.0 max Cadmium 1.5 max Cobalt 1.0 max Copper 40.0 min Iron 6.0 max Lead 27.0 max Manganese 6.0 max Nickel 50.0 max Phosphorus 1.0 max Silicon 5.0 max Sulfur 0.1 max Tin 20.0 max Zinc 50.0 max 1.2 The test methods appear in the following order: Sections Aluminum by the Carbamate Extraction-Ethyl- enedinitrilotetraacetate Titrimetric Test Method [2 % to 12 %] 71 – 78 Copper by the Combined Electrodeposition Gravimetric and Oxalyldihydrazide Spectrophotometric Test Method [50 %, minimum] 10 – 18 Iron by the 1,10-Phenanthroline Spectrophotometric Test Method [0.003 % to 1.25 %] 19 – 28 Lead by Atomic Absorption Spectrometry [0.002 % to 15 %] 90 – 100 Lead by the Ethylenedinitrilotetraacetic Acid (EDTA) Titrimetric Test Method [2.0 % to 30.0 %] 29 – 36 Nickel by the Dimethylglyoxime Extraction Sprectophotometric Test Method [0.03 % to 5.0 %] 37 – 46 Nickel by the Dimethylglyoxime Gravimetric Test Method [4 % to 50 %] 55 – 62 Silver in Silver-Bearing Copper by Atomic Absorption Spectrometry [0.01 % to 0.12 %] 101 – 112 Tin by the Iodotimetric Titration Test Method [0.5 % to 20 %] 63 – 70 Tin by the Phenylfluorone Spectrophotometric Test Method [0.01 % to 1.0 %] 113 – 123 Zinc by Atomic Absorption Spectrometry [0.2 % to 2 %] 79 – 89 Zinc by the Ethylenedinitrilotetraacetic Acid (EDTA) Titrimetric Test Method [2 % to 40 %] 47 – 54 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. 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 as referee methods to test such materials for compliance with composition specifications. It is assumed that all who use these 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.