Стандарт ASTM C696-99

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade uranium dioxide powders and pellets to determine compliance with specifications.

1.2 The analytical procedures appear in the following order:

Sections Uranium by Ferrous Sulfate Reduction in Phosphoric Acid and 7 to 15 Dichromate Titration Method Uranium and Oxygen Uranium Atomic Ratio by the Ignition 16 to 22 (Gravimetric) Impurity Correction Method Carbon (Total) by Direct Combustion-Thermal Conductivity 23 to 32 Method Total Chlorine and Fluorine by Pyrohydrolysis Ion-Selective 33 to 39 Electrode Method Moisture by the Coulometric, Electrolytic Moisture Analyzer 40 to 47 Method Nitrogen by the Kjeldahl Method 48 to 55 Isotopic Uranium Composition by Multiple-Filament Surface- Ionization Mass Spectrometric Method Spectrochemical Determination of Trace Elements in High-Purity 56 to 63 Uranium Dioxide Silver, Spectrochemical Determination of, by Gallium Oxide 64 to 65 Carrier D-C Arc Technique Rare Earths by Copper Spark-Spectrochemical Method 66 to 75 Impurity Elements by a Spark-Source Mass Spectrographic 76 to 82 Method Surface Area by Nitrogen Absorption Method 83 to 89 Total Gas in Reactor-Grade Uranium Dioxide Pellets 90 to 97 Thorium and Rare Earth Elements by Spectroscopy 98 to 105 Hydrogen by Inert Gas Fusion 106 to 115 Uranium Isotopic Analysis by Mass Spectrometry 116 to 124

Ключевые слова:

Atomic ratio-uranium dioxide (powders and pellets) oxygen to uranium, by polarographic method, test, Carbon content-nuclear materials carbon content of nuclear-grade uranium dioxide powders/pellets, by direct-combustion-thermal conductivity method, test, Chemical analysis-nuclear materials Mass spectrometry-nuclear materials/applications Spectrochemical analysis Uranium dioxide powders and pellets chemical/mass spectrometric/spectrochemical analysis of nuclear-grade uranium dioxide powders/pellets, test, Chlorine content Fluorine content total chlorine/fluorine in uranium dioxide powders/pellets, by pyrohydrolysis ion-selective electrode method, test, Dichromate titration Ferrous sulfate reduction Uranium content uranium in uranium dioxide powders/pellets, by ferrous sulfate reduction in phosphoric acid and dichromate titration method, test, Fluoride content Volatile matter content-nuclear materials volatile fluoride impurities in uranium dioxide powders/pellets, by spectrochemical method using rotating-disk spark technique, test, Gases-radioactive total gases in reactor-grade uranium dioxide pellets, test, Hydrogen content-nuclear materials Inert gas fusion hydrogen in uranium dioxide powders/pellets (in range from 0.05-100[mu]g), by inert gas fusion, test, Ignition-rubber/cellular materials oxygen to uranium atomic ratio (of uranium dioxide - powders/pellets, nuclear-grade), by ignition impurity correction method, test, Ignition impurity correction method oxygen to uranium atomic ratio of uranium dioxide (powders and pellets), test, Impurities-nuclear materials impurities in uranium dioxide powders/pellets, by spark-source mass spectrographic method, test, Isotopic analysis uranium isotopic analysis, by mass spectrometry, test, Kjeldahl method Nitrogen content-nuclear materials nitride nitrogen in uranium dioxide powders/pellets (in range from 10-250[mu]g), by Kjeldahl method, test, Moisture analysis-nuclear materials moisture in uranium dioxide powders/pellets, by coulometric electrolytic moisture analyzer method, test, Oxygen-to-uranium atomic ratio Polarographic methods oxygen to uranium atomic ratio of uranium dioxide powders/pellets (nuclear grade), by polarographic method, test, Rare earth content Thorium content thorium/rare earths in uranium dioxide powders/pellets, by spectroscopy, test, Silver content-nuclear materials silver in uranium dioxide powders/pellets, spectrochemical determination by gallium oxide carrier d-c arc technique, test, Sulfur content-nuclear materials total sulfur in uranium dioxide (powders and pellets), by distillation-spectrophotometric method, test, Surface analysis-nuclear materials surface area of uranium dioxide powders/pellets, by nitrogen adsorption method, test, Trace elements-nuclear materials trace elements in high-purity uranium dioxide powders/pellets, by spectrochemical determination, test, Uranium atomic ratio uranium and oxygen to uranium atomic ratio, by ignition (gravimetric) impurity correction method, test, Uranium isotopic analysis uranium dioxide (powders and pellets), by multiple-filament surface-ionization mass spectrometric method, test, Order Form

Заменен на:

ASTM C696-99(2005)

Ссылочные документы:

E130C753C1347C1287C1413C1408C1267C776D1193C761

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