Standard Historical Last Updated: Aug 02, 2022 Track Document
ASTM C1165-17

Standard Test Method for Determining Plutonium by Controlled-Potential Coulometry in H2SO4 at a Platinum Working Electrode

Standard Test Method for Determining Plutonium by Controlled-Potential Coulometry in H2SO4 at a Platinum Working Electrode C1165-17 ASTM|C1165-17|en-US Standard Test Method for Determining Plutonium by Controlled-Potential Coulometry in H2SO4 at a Platinum Working Electrode Standard new BOS Vol. 12.01 Committee C26
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Significance and Use

5.1 This test method is to be used to ascertain whether or not materials meet specifications for plutonium content or plutonium assay, or both.

5.2 A chemical calibration of the coulometer is necessary for accurate results.

FIG. 1 Example of a Cell Design Used at Los Alamos National Laboratory (LANL)

 Example of a Cell Design Used at Los Alamos National Laboratory (LANL) Example of a Cell Design Used at Los Alamos National Laboratory (LANL)

5.3 Fitness for Purpose of Safeguards and Nuclear Safety Application—Methods intended for use in safeguards and nuclear safety applications shall meet the requirements specified by Guide C1068 for use in such applications.

Scope

1.1 This test method covers the determination of milligram quantities of plutonium in unirradiated uranium-plutonium mixed oxide having a U/Pu ratio range of 0.1 to 10. This test method is also applicable to plutonium metal, plutonium oxide, uranium-plutonium mixed carbide, various plutonium compounds including fluoride and chloride salts, and plutonium solutions.

1.2 The recommended amount of plutonium for each aliquant in the coulometric analysis is 5 to 10 mg. Precision worsens for lower amounts of plutonium, and elapsed time of electrolysis becomes impractical for higher amounts of plutonium.

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, 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. Specific precautionary statements are given in Section 9.

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.

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Details
Book of Standards Volume: 12.01
Developed by Subcommittee: C26.05
Pages: 6
DOI: 10.1520/C1165-17
ICS Code: 27.120.30