1.1这些试验方法包括化学成分在以下范围内的铜和铜合金化学分析的光度程序: 1.2分析程序按以下顺序出现: 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。 有关使用某些试剂时应遵守的预防措施，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 photometric procedures for the chemical analysis of copper and copper alloys having chemical compositions within the following limits: 1.2 The analytical procedures appear in the following order: 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 the use of certain reagents, refer to Practices E 50. ====== Significance And Use ====== These test methods for the chemical analysis of 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 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.