ASTM C968 - 12

    Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets

    Active Standard ASTM C968 | Developed by Subcommittee: C26.05

    Book of Standards Volume: 12.01


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    Significance and Use

    The test methods in this method are designed to show whether a given material is in accordance with Specification C922.

    1. Scope

    1.1 These test methods cover procedures for the analysis of sintered gadolinium oxide-uranium dioxide pellets to determine compliance with specifications.

    1.2 The analytical procedures appear in the following order:

    Section
    Carbon (Total) by Direct CombustionThermal Conductivity Method
    C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method
    Chlorine and Fluorine by Pyrohydrolysis Ion-Selective Electrode Method
    C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide
    Gadolinia Content by Energy-Dispersive X-Ray Spectrometry
    C1456 Test Method for Determination of Uranium or Gadolinium, or Both, in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)
    Hydrogen by Inert Gas Fusion
    C1457 Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
    Isotopic Uranium Composition by Multiple-Filament Surface-Ionization Mass Spectrometric Method
    C1413 Test Method for Isotopic Analysis of Hydrolysed Uranium Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization Mass Spectrometry
    C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis
    Nitrogen by DistillationNessler Reagent (Photometric) Method6 to 16
    Oxygen-to-Metal Ratio of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
    C1430 Test Method for Determination of Uranium, Oxygen to Uranium, and Oxygen to Metal (O/M) in Sintered Uranium Dioxide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equilibration
    Spectrochemical Determination of Trace Impurity Elements
    C1517 Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy
    Total Gas by Hot Vacuum Extraction
    Ceramographic Determination of Free Gd2O3 and Free UO2 to Estimate the Homogeneity of (U,Gd)O2 Pellets17 to 24
    Ceramographic Determination of Average Grain Size by Linear Intercept after Chemical Etching 25 to 32

    1.3 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations 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

    C922 Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets

    C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis

    C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method

    C1413 Test Method for Isotopic Analysis of Hydrolyzed Uranium Hexafluoride and Uranyl Nitrate Solutions by Thermal Ionization Mass Spectrometry

    C1430 Test Method for Determination of Uranium, Oxygen to Uranium (O/U), and Oxygen to Metal (O/M) in Sintered Uranium Dioxide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equilibration

    C1456 Test Method for Determination of Uranium or Gadolinium (or both) in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)

    C1457 Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction

    C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide

    C1517 Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy

    D1193 Specification for Reagent Water

    E112 Test Methods for Determining Average Grain Size

    E146


    ICS Code

    ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/C0968-12

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