ASTM C1637 - 13

    Standard Test Method for the Determination of Impurities in Plutonium Metal: Acid Digestion and Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) Analysis

    Active Standard ASTM C1637 | Developed by Subcommittee: C26.05

    Book of Standards Volume: 12.01


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    ASTM C1637

    Significance and Use

    4.1 This test method may be run together with Test Method C1432 to analyze for trace impurities in Pu metal. Using the technique described in this test method and the technique described in Test Method C1432 will provide the analyst with a more thorough verification of the impurity concentrations contained in the Pu metal sample. In addition, Test Method C1432 can be used to determine impurity concentrations for analytes such as Ca, Fe, Na, and Si, which have not been determined using this test method.

    4.2 This test method can be used on Pu matrices in nitrate solutions.

    4.3 This test method has been validated for use on materials that meet the specifications described in Specification C757 and Test Methods C758 and C759.

    4.4 This test method has been validated for all elements listed in Table 1.

    TABLE 1 Impurity Elements, Mean Percent Recoveries and Percent Relative Standard Deviations

    Element

    N

    Mean R, %  

    RSD, %  

    Lithium

    22

    93.65

    7.26

    Beryllium

    22

    96.46

    8.14

    Boron

    22

    98.48

    6.97

    Magnesium

    22

    98.30

    7.58

    Aluminium

    22

    99.66

    8.62

    Phosphorus

    22

    99.43

    8.96

    Titanium

    22

    99.25

    2.44

    Vanadium

    22

    94.44

    7.38

    Chromium

    22

    97.29

    3.90

    Manganese

    22

    95.48

    3.46

    Cobalt

    22

    95.92

    4.35

    Nickel

    22

    96.78

    3.98

    Zinc

    22

    94.24

    4.12

    Copper

    22

    96.66

    3.70

    Germanium

    22

    98.16

    4.54

    Arsenic

    22

    101.38

    8.67

    Selenium

    22

    101.15

    8.00

    Rubidium

    22

    100.24

    5.36

    Strontium

    22

    98.89

    4.16

    Yttrium

    22

    98.07

    3.81

    Zirconium

    22

    98.10

    3.41

    Niobium

    22

    96.92

    3.65

    Molybdenum

    22

    97.82

    3.81

    MolybdenumA

    21

    98.36

    2.90

    Ruthenium

    22

    98.32

    2.14

    Palladium

    22

    97.69

    2.49

    Silver

    22

    105.14

    7.88

    SilverA

    21

    106.56

    4.26

    Cadmium

    22

    96.03

    3.72

    Indium

    22

    98.01

    3.57

    Tin

    22

    97.25

    3.94

    Antimony

    22

    95.05

    6.21

    Tellurium

    22

    100.10

    6.86

    Caesium

    22

    101.81

    6.93

    Barium

    22

    97.99

    3.68

    Lanthanum

    22

    98.31

    3.84

    Cerium

    22

    97.57

    3.72

    Praeseodymium

    22

    97.32

    3.00

    Neodymium

    22

    97.22

    3.56

    Samarium

    22

    98.39

    3.34

    Europium

    22

    97.43

    3.02

    Gadolinium

    22

    100.04

    2.78

    Terbium

    22

    97.62

    2.72

    Dysprosium

    22

    98.18

    2.20

    Holmium

    22

    98.61

    2.21

    Erbium

    22

    98.05

    2.29

    Ytterbium

    22

    99.59

    2.43

    Lutetium

    22

    97.06

    5.00

    LutetiumA

    21

    97.79

    3.72

    Hafnium

    22

    100.32

    3.95

    Tantalum

    22

    93.42

    3.21

    TantalumA

    21

    93.89

    2.43

    Tungsten

    22

    96.29

    3.54

    Rhenium

    22

    99.75

    3.28

    Iridium

    22

    99.88

    3.70

    Platinum

    22

    100.57

    3.93

    Gold

    22

    101.20

    5.35

    GoldA

    21

    100.41

    3.96

    Thallium

    22

    100.09

    5.02

    Lead

    22

    101.58

    5.54

    Bismuth

    22

    100.70

    5.43

    Thorium

    22

    103.30

    6.89

    Uranium

    22

    104.14

    9.11

    A Without Outlying Value

    1. Scope

    1.1 This Test Method covers the determination of 58 trace elements in plutonium (Pu) metal. The Pu sample is dissolved in acid, and the concentration of the trace impurities are determined by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS).

    1.2 This Test Method is specific for the determination of trace impurities in Pu metal. It may be applied to other types of Pu materials, such as Pu oxides, if the samples are dissolved and oxidized to the Pu(IV) state. However, it is the responsibility of the user to evaluate the performance of other matrices.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this method to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use of this standard.


    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

    C757 Specification for Nuclear-Grade Plutonium Dioxide Powder, Sinterable

    C758 Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Plutonium Metal

    C759 Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Plutonium Nitrate Solutions

    C1168 Practice for Preparation and Dissolution of Plutonium Materials for Analysis

    C1432 Test Method for Determination of Impurities in Plutonium: Acid Dissolution, Ion Exchange Matrix Separation, and Inductively Coupled Plasma-Atomic Emission Spectroscopic (ICP/AES) Analysis

    D1193 Specification for Reagent Water


    ICS Code

    ICS Number Code 71.060.10 (Chemical elements)

    UNSPSC Code

    UNSPSC Code 12141735(Plutonium Pu)


    DOI: 10.1520/C1637-13

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