ASTM C 697:2024

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade plutonium dioxide powders and pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Plutonium Sample Handling 8 to 10 Plutonium by Controlled-Potential Coulometry 2 Plutonium by Ceric Sulfate Titration 3 Plutonium by Amperometric Titration with Iron(II) 2 Plutonium by Diode Array Spectrophotometry 3 Nitrogen by Distillation Spectrophotometry Using Nessler Reagent 11 to 18 Carbon (Total) by Direct Combustion-Thermal Conductivity 19 to 29 Total Chlorine and Fluorine by Pyrohydrolysis 30 to 37 Sulfur by Distillation Spectrophotometry 38 to 46 Plutonium Isotopic Analysis by Mass Spectrometry 4 Rare Earth Elements by Spectroscopy 5 Trace Elements by Carrier-Distillation Spectroscopy 5 (Alternative: Impurities by ICP-AES or ICP-MS) Impurity Elements by Spark-Source Mass Spectrography 5 Moisture by the Coulometric Electrolytic Moisture Analyzer 47 to 54 Total Gas in Reactor-Grade Plutonium Dioxide Pellets 6 Plutonium-238 Isotopic Abundance by Alpha Spectrometry 3 Americium-241 in Plutonium by Gamma-Ray Spectrometry 2 Rare Earths By Copper Spark-Spectroscopy 5 Plutonium Isotopic Analysis by Mass Spectrometry 55 to 63 Oxygen-To-Metal Atom Ratio by Gravimetry 64 to 71 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 precautionary statements, see Sections 6 , 16.2.5 , 44.7 , and 59.5.1 . 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.

27.120.30