ASTM WK60656

    New Practice for Preparation of Plutonium Materials by Pyrohydrolysis for Determination of Fluoride, Choride, or Both

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    Developed by Subcommittee: C26.05 | Committee C26 | Contact Staff Manager


    1. Scope

    1.1 This practice provides a procedure for the preparation of samples of plutonium (Pu) materials, using pyrohydrolysis, for subsequent measurement by ion chromatography or ion-selective electrode. 1.2 This practice utilizes a sample size of 0.25+0.05 g and is therefore suitable when the larger sample size used in Test Methods C697 and C698 are not available. 1.3 The procedure described in this practice may be applicable to other plutonium materials, such as alloys, compounds and scrap metals. The user must determine the safety and applicability of this test method to such materials. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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.


    nuclear fuel cycle; laboratory analysis; plutonium; pyrohydrolysis; fluoride; chloride


    A standard practice is needed to ensure a consistent procedure for preparation of aliquots by pyrohydrolysis for the analysis of fluoride and chloride (using small sample size) among nuclear fuel cycle laboratories at installations that process plutonium materials.

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Michael Brisson


    C26.05 (20-01)

    Negative Votes Need Resolution