1.1这些试验方法包括化学成分在以下范围内的铜镍和铜镍锌合金的化学分析程序: 要素 浓度范围，% 铜 40岁及以上 镍 10至50 锌 0到40 领导 0到15 锡 0到10 铁 0.00至2 锰 0.00至2 钴 0.00至0.5 包括钴。 对于含锌5%及以上的铜基合金，锌通常通过差值计算。 在可能的情况下，应对照成分与所分析材料相当的国家标准和技术研究所标准样品检查分析技术和程序。 1.2试验方法按以下顺序出现: 小节 钴: α-亚硝基-β-萘酚法 26至28 亚硝基R盐（光度法） 29至37 电解法生产铜，或同时生产铜和铅 2. 一 铁: 重铬酸盐法 38至40 硫氰酸盐（光度法） 2. 一 水杨酸（光度法） 2. 一 潜在客户: 电解法 12至15 硫酸盐法 2. b 锰: 过硫酸盐法 2. b 高碘酸盐（光度法） 59至66 丁二酮肟法测定镍 2. 一 碘量滴定法测定锡 2. b 用氧化物或亚铁氰化物法测定的锌 2. 一 1.3本标准无意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。 有关这些试验方法中应遵守的预防措施，请参阅规程E 50。 ====意义和用途====== 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。预计工作将在配备适当的实验室中进行。

1.1 These test methods cover procedures for the chemical analysis of copper-nickel and copper-nickel-zinc alloys having chemical compositions within the following limits: Element Concentration Range,% Copper 40 and over Nickel 10 to 50 Zinc 0 to 40 Lead 0 to 15 Tin 0 to 10 Iron 0.00 to 2 Manganese 0.00 to 2 Cobalt 0.00 to 0.5 Includes cobalt. In the case of copper-base alloys containing 5 % and over of zinc, the zinc is usually calculated by difference. Whenever possible the technique and procedures for analysis should be checked against a National Institute of Standards and Technology standard sample having a composition comparable to the material being analyzed. 1.2 The test methods appear in the following order: Sections Cobalt: Alpha-Nitroso-Beta-Naphthol Method 26 to 28 Nitroso-R-Salt (Photometric) Method 29 to 37 Copper, or Copper and Lead Simultaneously, by the Electrolytic Method 2 a Iron: Dichromate Method 38 to 40 Thiocyanate (Photometric)Method 2 a Salicylate (Photometric)Method 2 a Lead: Electrolytic Method 12 to 15 Sulfate Method 2 b Manganese: Persulfate Method 2 b Periodate (Photometric)Method 59 to 66 Nickel by the Dimethylglyoxime Method 2 a Tin by the Iodimetric Titration Method 2 b Zinc by the Oxide or Ferrocyanide Method 2 a 1.3 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 precautions to be observed in these test methods, refer to Practices E 50. ====== Significance And Use ====== 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.