Standard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis
Standard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic AnalysisC1411-01ASTM|C1411-01|en-USStandard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic AnalysisStandardC1411 Standard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis>newBOS Vol. 12.01 Committee C26
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Significance and Use
Uranium and plutonium are used in nuclear reactor fuel and must be analyzed to insure that they meet certain criteria for isotopic composition as described in Specification C 833 and Specification C 1008. This standard practice is used to chemically separate the same mass peak interferences from uranium and plutonium and from other impurities prior to isotopic abundance determination by thermal ionization mass spectrometry.
In those facilities where perchloric acid use is tolerated, the ion exchange separation procedure in Test Method E 267 may be used prior to isotopic abundance determination. Also, in those facilities where perchloric acid use is tolerated and when uranium and plutonium concentrations are to be determined as well as isotopic abundances using the thermal ionization mass spectrometer, the ion exchange separation procedure in Test Method E 267 may be used.
Scope
1.1 This practice is for the ion exchange separation of uranium and plutonium from each other and from other impurities for subsequent isotopic analysis by thermal ionization mass spectrometry. Plutonium-238 and uranium-238, and plutonium-241 and americium-241, will appear as the same mass peak and must be chemically separated prior to analysis. Only high purity solutions can be analyzed reliably using thermal ionization mass spectrometry.
1.2 This standard may involve hazardous material, operations, and equipment. 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 and health practices and determine the applicability of regulatory limitations prior to use.
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