ASTM C1022 - 17

    Standard Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate

    Active Standard ASTM C1022 | Developed by Subcommittee: C26.05

    Book of Standards Volume: 12.01

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    Significance and Use

    4.1 The test methods in this standard are designed to show whether a given material meets the specifications prescribed in Specification C967.

    4.2 Because of the variability of matrices of uranium-ore concentrate and the limited availability of suitable reference or calibration materials, the precision and bias of these test methods should be established by each individual laboratory that will use them. The precision and bias statements given for each test method are those reported by various laboratories and can be used as a guideline.

    4.3 Instrumental test methods such as X-ray fluorescence and emission spectroscopy can be used for the determination of some impurities where such equipment is available.

    1. Scope

    1.1 These test methods cover procedures for the chemical and atomic absorption analysis of uranium-ore concentrates to determine compliance with the requirements prescribed in Specification C967.

    1.2 The analytical procedures appear in the following order:



    Uranium by Ferrous Sulfate Reduction—Potassium Dichromate


    Nitric Acid-Insoluble Uranium

    10 to 18

    Extractable Organic Material

    19 to 26

    Determination of Arsenic


    Carbonate by CO2 Gravimetry

    28 to 34

    Fluoride by Ion-Selective Electrode

    35 to 42

    Halides by Volhard Titration

    43 to 50

    Phosphorus by Spectrophotometry

    52 to 60

    Determination of Silicon


    Determination of Thorium


    Calcium, Iron, Magnesium, Molybdenum, Titanium, and Vana-
     dium by Atomic Absorption Spectrophotometry

    63 to 72

    Potassium and Sodium by Atomic Absorption

    73 to 82

    Boron by Spectrophotometry

    83 to 92

    1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

    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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. A specific precautionary statement is given in Section 7.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    C761 Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride

    C859 Terminology Relating to Nuclear Materials

    C967 Specification for Uranium Ore Concentrate

    C1110 Test Method for Determining Elements in Waste Streams by Inductively Coupled Plasma-Atomic Emission Spectroscopy

    C1219 Test Methods for Arsenic in Uranium Hexafluoride

    C1254 Test Method for Determination of Uranium in Mineral Acids by X-Ray Fluorescence

    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

    C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis

    C1843 Test Method for Determining Moisture Content in Uranium-Ore Concentrate

    D1193 Specification for Reagent Water

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

    ICS Code

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

    UNSPSC Code

    UNSPSC Code 11101603(Uranium ore)

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

    DOI: 10.1520/C1022-17

    Citation Format

    ASTM C1022-17, Standard Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate, ASTM International, West Conshohocken, PA, 2017,

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