ASTM C1561 - 10

    Standard Guide for Determination of Plutonium and Neptunium in Uranium Hexafluoride by Alpha Spectrometry

    Active Standard ASTM C1561 | Developed by Subcommittee: C26.05

    Book of Standards Volume: 12.01


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    ASTM C1561

    Significance and Use

    The method is applicable to the analysis of materials to demonstrate compliance with the specifications set forth in Specifications C787 and C996.

    The method can be used to quantify Pu and Np in U-rich matrix before to recycle them.

    1. Scope

    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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C787 Specification for Uranium Hexafluoride for Enrichment

    C996 Specification for Uranium Hexafluoride Enriched to Less Than 5 % 235U

    C1163 Practice for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride

    C1475 Guide for Determination of Neptunium-237 in Soil

    D1193 Specification for Reagent Water

    D3084 Practice for Alpha-Particle Spectrometry of Water

    D3648 Practices for the Measurement of Radioactivity


    ICS Code

    ICS Number Code 71.040.50 (Physicochemical methods of analysis)

    UNSPSC Code

    UNSPSC Code 15131500(Nuclear fuel)


    DOI: 10.1520/C1561-10

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