ASTM C968 - 12 Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets

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Source: ASTM International

The test methods in this method are designed to show whether a given material is in accordance with Specification C922.

1. Scope

1.1 These test methods cover procedures for the analysis of sintered gadolinium oxide-uranium dioxide pellets to determine compliance with specifications.

1.2 The analytical procedures appear in the following order
Section
Carbon (Total) by Direct CombustionThermal Conductivity Method
C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method
Chlorine and Fluorine by Pyrohydrolysis Ion-Selective Electrode Method
C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide
Gadolinia Content by Energy-Dispersive X-Ray Spectrometry
C1456 Test Method for Determination of Uranium or Gadolinium, or Both, in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)
Hydrogen by Inert Gas Fusion
C1457 Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
Isotopic Uranium Composition by Multiple-Filament Surface-Ionization Mass Spectrometric Method
C1413 Test Method for Isotopic Analysis of Hydrolysed Uranium Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization Mass Spectrometry
C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis
Nitrogen by DistillationNessler Reagent (Photometric) Method: 6 to 16
Oxygen-to-Metal Ratio of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
C1430 Test Method for Determination of Uranium, Oxygen to Uranium, and Oxygen to Metal (O/M) in Sintered Uranium Dioxide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equilibration
Spectrochemical Determination of Trace Impurity Elements
C1517 Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy
Total Gas by Hot Vacuum Extraction
Ceramographic Determination of Free Gd2O3 and Free UO2 to Estimate the Homogeneity of (U,Gd)O2 Pellets: 17 to 24
Ceramographic Determination of Average Grain Size by Linear Intercept after Chemical Etching \t : 25 to 32

1.3 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately)

ASTM Standards
C922 Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets
C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis
C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method
C1413 Test Method for Isotopic Analysis of Hydrolyzed Uranium Hexafluoride and Uranyl Nitrate Solutions by Thermal Ionization Mass Spectrometry
C1430 Test Method for Determination of Uranium, Oxygen to Uranium (O/U), and Oxygen to Metal (O/M) in Sintered Uranium Dioxide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equilibration
C1456 Test Method for Determination of Uranium or Gadolinium (or both) in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)
C1457 Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide
C1517 Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy
D1193 Specification for Reagent Water
E146 Methods of Chemical Analysis of Zirconium Alloys(Silicon, Hydrogen, and Copper

Index Terms

0 Vacuum testing; Volatile matter content--nuclear materials; XRF (X-ray fluorescence)--nuclear materials; Atomic ratio; Carbon content--nuclear materials; Ceramographic determination; Chlorine content--nuclear materials/applications; Energy-dispersive x-ray analysis (EDXA); Fluorine content--nuclear materials/applications; Gadolinia; Gadolinium oxide-uranium dioxide powder/pellets; Gases--radioactive; Homogeneity; Hot-vacuum extraction; Hydrogen content--nuclear materials; Inert gas fusion; Ion selective electrode method; Isotopic analysis; Mass spectrometry--nuclear materials/applications; Multiple-filament surface-ionization mass spectrometric method; Nessler reagent method; Nitrogen content--nuclear materials; Oxygen-to-metal (O/M) ratio; Pyrohydrolysis ion-selective electrode method; Spectrographic analysis; Spectroscopy--emission; Thermal analysis (TA); Thorium content; Trace elements--spectrochemical analysis; Uranium; Uranium content; Uranium isotopic analysis

ICS Code

ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)

DOI: 10.1520/C0968-12

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