1.1 本规程涵盖石墨炉原子吸收光谱仪的优化和光谱仪性能标准的检查。 1.2 以国际单位制表示的数值应视为标准。 1.3 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、健康和环境实践，并确定监管限制的适用性。 1.4 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 本规程用于优化石墨炉原子吸收光谱法测定金属和合金中微量元素的参数。它还描述了检查光谱仪性能的实践。预计工作将由经过培训的操作员在配备适当的实验室中进行，并遵循适当的处置程序。

1.1 This practice covers the optimization of graphite furnace atomic absorption spectrometers and the checking of spectrometer performance criteria. 1.2 The values stated in SI units are to be regarded as the standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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 This practice is for optimizing the parameters used in the determination of trace elements in metals and alloys by the graphite furnace atomic absorption spectrometric method. It also describes the practice for checking the spectrometer performance. The work is expected to be performed in a properly equipped laboratory by trained operators and appropriate disposal procedures are to be followed.