ASTM C 1625 : 2024
Current
The latest, up-to-date edition.
Standard Test Method for Uranium and Plutonium Concentrations and Isotopic Abundances by Thermal Ionization Mass Spectrometry
Hardcopy , PDF
English
01-10-2024
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
C 26
|
| DocumentType |
Test Method
|
| Pages |
8
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1This test method covers the determination of the concentration and isotopic composition of uranium and plutonium in solutions. The purified uranium or plutonium fractions from samples ranging from nuclear materials to environmental or bioassay matrices is loaded onto a metal filament and placed in the mass spectrometer. The isotopic ratio is determined by thermal ionization mass spectrometry, and the concentration is determined by isotope dilution.
1.2The values stated in SI units are to be regarded as the standard. Values in parentheses are for information only.
1.3This 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 safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4This 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.
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| ASTM C 1636 : 2022 | Standard Guide for Determination of Uranium-232 in Uranium Hexafluoride |
| ASTM C 1411 : 2020 | Standard Practice for The Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis |
| ASTM E 321 : 2020 | Standard Test Method for Atom Percent Fission in Uranium and Plutonium Fuel (Neodymium-148 Method) |
| ASTM C 1672 : 2023 | Standard Test Method for Determination of the Uranium, Plutonium or Americium Isotopic Composition or Concentration by the Total Evaporation Method Using a Thermal Ionization Mass Spectrometer |
| ASTM C 1816 : 2024 | Standard Practice for The Ion Exchange Separation of Small Volume Samples Containing Uranium, Americium, and Plutonium Prior to Isotopic Abundance and Content Analysis |
| ASTM C 697 : 2016 | Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Plutonium Dioxide Powders and Pellets |
| ASTM C 1415 : 2024 | Standard Test Method for <sup>238</sup>Pu Isotopic Abundance by Alpha Spectrometry |
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