1.1 该方法包括通过α光谱法测定六氟化铀中的钚和镎同位素。该方法也适用于任何可能转化为硝酸系统的基质。 1.2 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，并确定监管要求的适用性。 ====意义和用途====== 5.1 该方法适用于材料分析，以证明符合规范中规定的规范 C787 和 C996 . 5.2 该方法可用于在回收富铀基质中的钚和Np之前对其进行量化。

1.1 This method covers the determination of plutonium and neptunium isotopes in uranium hexafluoride by alpha spectroscopy. The method can also be applicable to any matrix that may be converted to a nitric acid system. 1.2 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 requirements prior to use. ====== Significance And Use ====== 5.1 The method is applicable to the analysis of materials to demonstrate compliance with the specifications set forth in Specifications C787 and C996 . 5.2 The method can be used to quantify Pu and Np in U-rich matrix before to recycle them.