ASTM C761 - 11

    Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride

    Active Standard ASTM C761 | Developed by Subcommittee: C26.05

    Book of Standards Volume: 12.01

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    1. Scope

    1.1 These test methods cover procedures for subsampling and for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of uranium hexafluoride UF6. Most of these test methods are in routine use to determine conformance to UF6 specifications in the Enrichment and Conversion Facilities.

    1.2 The analytical procedures in this document appear in the following order:

    Note 1—Subcommittee C26.05 will confer with C26.02 concerning the renumbered section in Test Methods C761 to determine how concerns with renumbering these sections, as analytical methods are replaced with stand-alone analytical methods, are best addressed in subsequent publications.

    Subsampling of Uranium Hexafluoride7 - 10
    Gravimetric Determination of Uranium11 - 19
    Titrimetric Determination of Uranium20
    Preparation of High-Purity U3O 821
    Isotopic Analysis22
    Isotopic Analysis by Double-Standard Mass-Spectrometer Method23 - 29
    Determination of Hydrocarbons, Chlorocarbons, and Partially Substituted Halohydrocarbons29-36
    Atomic Absorption Determination of Antimony36
    Spectrophotometric Determination of Bromine37
    Titrimetric Determination of Chlorine38-44
    Determination of Silicon and Phosphorus45-51
    Determination of Boron and Silicon52-59
    Determination of Ruthenium60
    Determination of Titanium and Vanadium61
    Spectrographic Determination of Metallic Impurities 62
    Determination of Tungsten63
    Determination of Thorium and Rare Earths64-69
    Determination of Molybdenum70
    Atomic Absorption Determination of Metallic Impurities71-76
    Impurity Determination by Spark-Source Mass Spectrography77
    Determination of Boron-Equivalent Neutron Cross Section78
    Determination of Uranium-233 Abundance by Thermal Ionization Mass Spectrometry79
    Determination of Uranium-232 by Alpha Spectrometry80-86
    Determination of Fission Product Activity87
    Determination of Plutonium by Ion Exchange and Alpha Counting88-92
    Determination of Plutonium by Extraction and Alpha Counting93-100
    Determination of Neptunium by Extraction and Alpha Counting101-108
    Atomic Absorption Determination of Chromium Soluble In Uranium Hexafluoride109-115
    Atomic Absorption Determination of Chromium Insoluble In Uranium Hexafluoride116-122
    Determination of Technetium-99 In Uranium Hexafluoride123-131
    Method for the Determiation of Gamma-Energy Emission Rate from Fission Products in Uranium Hexafluoride132
    Determination of Metallic Impurities by ICP-AES133-142
    Determination of Molybdenum, Niobium, Tantalum, Titanium, and Tungsten by ICP-AES143-152

    1.3 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. (For specific safeguard and safety consideration statements, see Section 6.)

    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

    C799 Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions

    C859 Terminology Relating to Nuclear Materials

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

    C1128 Guide for Preparation of Working Reference Materials for Use in Analysis of Nuclear Fuel Cycle Materials

    C1219 Test Methods for Arsenic in Uranium Hexafluoride

    C1233 Practice for Determining Equivalent Boron Contents of Nuclear Materials

    C1267 Test Method for Uranium by Iron (II) Reduction in Phosphoric Acid Followed by Chromium (VI) Titration in the Presence of Vanadium

    C1287 Test Method for Determination of Impurities in Nuclear Grade Uranium Compounds by Inductively Coupled Plasma Mass Spectrometry

    C1295 Test Method for Gamma Energy Emission from Fission Products in Uranium Hexafluoride and Uranyl Nitrate Solution

    C1344 Test Method for Isotopic Analysis of Uranium Hexafluoride by Single-Standard Gas Source Mass Spectrometer Method

    C1346 Practice for Dissolution of UF6 from P-10 Tubes ,

    C1380 Test Method for the Determination of Uranium Content and Isotopic Composition by Isotope Dilution Mass Spectrometry

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

    C1428 Test Method for Isotopic Analysis of Uranium Hexafluoride by Single-Standard Gas Source Multiple Collector Mass Spectrometer Method

    C1429 Test Method for Isotopic Analysis of Uranium Hexafluoride by Double-Standard Multi-Collector Gas Mass Spectrometer

    C1441 Test Method for The Analysis of Refrigerant 114, Plus Other Carbon-Containing and Fluorine-Containing Compounds in Uranium Hexafluoride via Fourier-Transform Infrared (FTIR) Spectroscopy

    C1474 Test Method for Analysis of Isotopic Composition of Uranium in Nuclear-Grade Fuel Material by Quadrupole Inductively Coupled Plasma-Mass Spectrometry

    C1477 Test Method for Isotopic Abundance Analysis of Uranium Hexafluoride and Uranyl Nitrate Solutions by Multi-Collector, Inductively Coupled Plasma-Mass Spectrometry

    C1508 Test Method for Determination of Bromine and Chlorine in UF6 and Uranyl Nitrate by X-Ray Fluorescence (XRF) Spectroscopy

    C1539 Test Method for Determination of Technetium-99 in Uranium Hexafluoride by Liquid Scintillation Counting

    C1561 Guide for Determination of Plutonium and Neptunium in Uranium Hexafluoride and U-Rich Matrix by Alpha Spectrometry

    C1636 Guide for the Determination of Uranium-232 in Uranium Hexafluoride

    C1689 Practice for Subsampling of Uranium Hexafluoride

    C1742 Test Method for Isotopic Analysis of Uranium Hexafluoride by Double Standard Single-Collector Gas Mass Spectrometer Method

    D1193 Specification for Reagent Water

    D3084 Practice for Alpha-Particle Spectrometry of Water

    E60 Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry

    Other Specifications

    USEC 651 Good Handling and Practices for UF6

    ANSI Standards

    ANSI N 14.1 Nuclear Material-Uranium Hexafluoride-Packaging for Transport

    ISO Standards

    ISO 7195 Nuclear Energy-Packaging of Uranium Hexafluoride (UF6) for Transport

    ICS Code

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

    UNSPSC Code

    UNSPSC Code 15131500(Nuclear fuel)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/C0761-04E01

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    Citation Format

    ASTM C761-11, Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride, ASTM International, West Conshohocken, PA, 2011,

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