ASTM C 1168 : 2015 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Practice for Preparation and Dissolution of Plutonium Materials for Analysis
09-11-2023
English
07-10-2015
CONTAINED IN VOL. 12.01, 2015 Describes dissolution techniques for plutonium materials that are applicable to the test methods used for characterizing these materials.
Committee |
C 26
|
DocumentType |
Redline
|
Pages |
10
|
PublisherName |
American Society for Testing and Materials
|
Status |
Superseded
|
SupersededBy |
1.1This practice is a compilation of dissolution techniques for plutonium materials that are applicable to the test methods used for characterizing these materials. Dissolution treatments for the major plutonium materials assayed for plutonium or analyzed for other components are listed. Aliquots of the dissolved samples are dispensed on a weight basis when one of the analyses must be highly reliable, such as plutonium assay; otherwise they are dispensed on a volume basis.
1.2Procedures in this practice are intended for the dissolution of plutonium metal, plutonium oxide, and uranium-plutonium mixed oxides. Aliquots of dissolved samples are analyzed using test methods, such as those developed by Subcommittee C26.05 on Methods of Test, to demonstrate compliance with applicable requirements. These may include product specifications such as Specifications C757 and C833.
1.3One or more of the procedures in this practice may be applicable to unique plutonium materials, such as alloys, compounds, and scrap materials. The user must determine the applicability of this practice to such materials.
1.4The treatments, in order of presentation, are as follows:
Procedure Number | Procedure Title | Section |
1 | Dissolution of Plutonium Metal with Hydrochloric Acid at Room Temperature | 9 |
2 | Dissolution of Plutonium Metal with Hydrochloric Acid and Heating | 10 |
3 | Dissolution of Plutonium Metal with Sulfuric Acid | 11 |
4 | Dissolution of Plutonium Oxide and Uranium-Plutonium Mixed | 12 |
5 | Dissolution of Plutonium Oxide and Uranium-Plutonium Mixed Oxides by Sodium Bisulfate Fusion | 13 |
6 | Dissolution of Uranium-Plutonium Mixed Oxides and Low-Fired Plutonium Oxide in Beakers | 14 |
7 | Open-Vessel (with Reflux Condenser) Dissolution of Plutonium Oxide Powder | 15 |
8 | Open-Vessel (with Reflux Condenser) Dissolution of Mixed Oxide Powder | 16 |
9 | Closed-Vessel Hot Block Dissolution of Plutonium Oxide Powder | 17 |
10 | Open-Vessel (with Reflux Condenser) Dissolution of Mixed Oxide Pellets | 18 |
1.5The values stated in SI units are to be regarded as standard. Values in parentheses (non-SI units), where provided, are for information only and are not considered standard.
1.6This 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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