ASTM C759 - 18
Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Plutonium Nitrate Solutions
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Significance and Use
4.1 These test methods are designed to show whether a given material meets the purchaser's specifications.
4.1.1 An assay is performed to determine whether the material has the specified plutonium content.
4.1.2 Determination of the isotopic content of the plutonium in the plutonium-nitrate solution is made to establish whether the effective fissile content is in compliance with the purchaser's specifications.
4.1.3 Impurity content is determined by a variety of methods to ensure that the maximum concentration limit of specified impurities is not exceeded. Determination of impurities is also required for calculation of the equivalent boron content (EBC).
4.2 Fitness for Purpose of Safeguards and Nuclear Safety Applications—Methods intended for use in safeguards and nuclear safety applications shall meet the requirements specified by Guide C1068 for use in such applications.
1. Scope
1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade plutonium nitrate solutions to determine compliance with specifications.
1.2 The analytical procedures appear in the following order:
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| Sections |
|
| |
| Plutonium by Controlled-Potential Coulometry | 2 |
| Plutonium by Amperometric Titration with Iron(II) | 2 |
| Plutonium by Diode Array Spectrophotometry |
|
| Free Acid by Titration in an Oxalate Solution | 8 to 15 |
| Free Acid by Iodate Precipitation-Potentiometric Titration | 16 to 22 |
| Uranium by Arsenazo I Spectrophotometric Test Method | 23 to 33 |
| Thorium by Thorin Spectrophotometric Test Method | 34 to 42 |
| Iron by 1,10-Phenanthroline Spectrophotometric Test Method | 43 to 50 |
| Impurities by ICP-AES |
|
| Chloride by Thiocyanate Spectrophotometric Test Method | 51 to 58 |
| Fluoride by Distillation-Spectrophotometric Test Method | 59 to 66 |
| Sulfate by Barium Sulfate Turbidimetric Test Method | 67 to 74 |
| Isotopic Composition by Mass Spectrometry | 75 to 76 |
| Plutonium-238 Isotopic Abundance by Alpha Spectrometry |
|
| Americium-241 by Extraction and Gamma Counting | 77 to 85 |
| Americium-241 by Gamma Counting | 86 to 94 |
| Gamma-Emitting Fission Products, Uranium, and Thorium by Gamma-Ray Spectroscopy | 94 to 102 |
| Rare Earths by Copper Spark Spectrochemical Test Method | 103 to 105 |
| Tungsten, Niobium (Columbium), and Tantalum by Spectro- | 106 to 114 |
| Sample Preparation for Spectrographic Analysis for General | 115 to 118 |
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. For specific safeguard and safety hazard statements, see Section 6.
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
C697 Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Plutonium Dioxide Powders and Pellets
C852/C852M Guide for Design Criteria for Plutonium Gloveboxes
C859 Terminology Relating to Nuclear Materials
C1009 Guide for Establishing and Maintaining a Quality Assurance Program for Analytical Laboratories Within the Nuclear Industry
C1068 Guide for Qualification of Measurement Methods by a Laboratory Within the Nuclear Industry
C1108 Test Method for Plutonium by Controlled-Potential Coulometry
C1128 Guide for Preparation of Working Reference Materials for Use in Analysis of Nuclear Fuel Cycle Materials
C1156 Guide for Establishing Calibration for a Measurement Method Used to Analyze Nuclear Fuel Cycle Materials
C1165 Test Method for Determining Plutonium by Controlled-Potential Coulometry in H2SO4 at a Platinum Working Electrode
C1206 Test Method for Plutonium by Iron (II)/Chromium (VI) Amperometric Titration
C1210 Guide for Establishing a Measurement System Quality Control Program for Analytical Chemistry Laboratories Within the Nuclear Industry
C1235 Test Method for Plutonium by Titanium(III)/Cerium(IV) Titration
C1268 Test Method for Quantitative Determination of 241Am in Plutonium by Gamma-Ray Spectrometry
C1297 Guide for Qualification of Laboratory Analysts for the Analysis of Nuclear Fuel Cycle Materials
C1307 Test Method for Plutonium Assay by Plutonium (III) Diode Array Spectrophotometry
C1415 Test Method for 238Pu Isotopic Abundance By Alpha Spectrometry
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
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E115 Practice for Photographic Processing in Optical Emission Spectrographic Analysis
E116 Practice for Photographic Photometry in Spectrochemical Analysis
ICS Code
ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)
UNSPSC Code
UNSPSC Code 15131500(Nuclear fuel)
Referencing This Standard
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DOI: 10.1520/C0759-18
Citation Format
ASTM C759-18, Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Plutonium Nitrate Solutions, ASTM International, West Conshohocken, PA, 2018, www.astm.org
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