1.1 本规程描述了镁和镁基合金的取样，以获得适用于定量原子发射光谱化学分析的冷铸样品。待激发区域中的圆盘代表熔体，其结果的可重复性接近所用参考材料的结果。 1.2 本规程描述了熔融金属的代表性取样程序。 1.3 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 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、健康和环境实践，并确定监管限制的适用性。 具体警告声明见 5.1 . 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 本规程与以下定量原子发射光谱化学试验方法结合使用， B954 ，适用于制造控制、材料或产品验收、认证和研发。

1.1 This practice describes the sampling of magnesium and magnesium-base alloys to obtain a chill-cast sample suitable for quantitative atomic emission spectrochemical analysis. The disk in the region to be excited is representative of the melt and gives a repeatability of results that approach that of the reference materials used. 1.2 This practice describes the procedure for representative sampling of molten metal. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered 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. Specific Warning Statements are given in 5.1 . 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 This practice, used in conjunction with the following quantitative atomic emission spectrochemical test method, B954 , is suitable for use in manufacturing control, material or product acceptance, certification, and research and development.