ASTM C968-19
(Test Method)Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
SIGNIFICANCE AND USE
4.1 The test methods in this method are designed to show whether a given material is in accordance with Specification C922.
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 Combustion—Thermal Conductivity Method
2
C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method
3
Chlorine and Fluorine by Pyrohydrolysis Ion-Selective Electrode Method
4
C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide
3
Gadolinia Content by Energy-Dispersive X-Ray Spectrometry
4
C1456 Test Method for Determination of Uranium or Gadolinium (or both) in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)
3
Hydrogen by Inert Gas Fusion
4
C1457 Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
3
Isotopic Uranium Composition by Multiple-Filament Surface-Ionization Mass Spectrometric Method
2
C1413 Test Method for Isotopic Analysis of Hydrolyzed Uranium Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization Mass Spectrometry
3
C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis
3
Nitrogen by Distillation—Nessler Reagent (Photometric) Method
7 to 17
Oxygen-to-Metal Ratio of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
4
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
3
Spectrochemical Determination of Trace Impurity Elements
4
C1517 Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy
3
Total Gas by Hot Vacuum Extraction
2
Ceramographic Determination of Free Gd2O3 and Free UO2 to Estimate the Homogeneity of (U,Gd)O2 Pellets
18 to 25
Ceramographic Determination of Average Grain Size by Linear Intercept after Chemical Etching
26 to 33
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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.
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Standards Content (Sample)
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.
Designation: C968 − 19
Standard Test Methods for
Analysis of Sintered Gadolinium Oxide-Uranium Dioxide
1
Pellets
This standard is issued under the fixed designation C968; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
Section
Ceramographic Determination of Average Grain Size by Linear 26 to 33
1.1 These test methods cover procedures for the analysis of
Intercept after Chemical Etching
sintered gadolinium oxide-uranium dioxide pellets to deter-
1.3 The values stated in SI units are to be regarded as the
mine compliance with specifications.
standard.
1.2 Theanalyticalproceduresappearinthefollowingorder:
1.4 This standard does not purport to address all of the
Section
safety concerns, if any, associated with its use. It is the
2
Carbon (Total) by Direct Combustion—Thermal Conductivity Method
responsibility of the user of this standard to establish appro-
3
C1408 Test Method for Carbon (Total) in Uranium Oxide Powders
priate safety, health, and environmental practices and deter-
and Pellets By Direct Combustion-Infrared Detection Method
4
Chlorine and Fluorine by Pyrohydrolysis Ion-Selective Electrode
mine the applicability of regulatory limitations prior to use.
Method
1.5 This international standard was developed in accor-
3
C1502 Test Method for Determination of Total Chlorine and Fluorine
in Uranium Dioxide and Gadolinium Oxide dance with internationally recognized principles on standard-
4
Gadolinia Content by Energy-Dispersive X-Ray Spectrometry
ization established in the Decision on Principles for the
3
C1456 Test Method for Determination of Uranium or Gadolinium (or
Development of International Standards, Guides and Recom-
both) in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray
Fluorescence (XRF) mendations issued by the World Trade Organization Technical
4
Hydrogen by Inert Gas Fusion
Barriers to Trade (TBT) Committee.
3
C1457 Test Method for Determination of Total Hydrogen Content of
Uranium Oxide Powders and Pellets by Carrier Gas Extraction
2. Referenced Documents
2
Isotopic Uranium Composition by Multiple-Filament Surface-
3
Ionization Mass Spectrometric Method
2.1 ASTM Standards:
3
C1413 Test Method for Isotopic Analysis of Hydrolyzed Uranium
C859Terminology Relating to Nuclear Materials
Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization
Mass Spectrometry C922SpecificationforSinteredGadoliniumOxide-Uranium
3
C1347 Practice for Preparation and Dissolution of Uranium Materials
Dioxide Pellets
for Analysis
C1347Practice for Preparation and Dissolution of Uranium
Nitrogen by Distillation—Nessler Reagent (Photometric) Method 7 to 17
4
Oxygen-to-Metal Ratio of Sintered Gadolinium Oxide-Uranium Diox- Materials for Analysis
ide Pellets
C1408Test Method for Carbon (Total) in Uranium Oxide
3
C1430 Test Method for Determination of Uranium, Oxygen to Ura-
Powders and Pellets By Direct Combustion-Infrared De-
nium (O/U), and Oxygen to Metal (O/M) in Sintered Uranium Diox-
ide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equili-
tection Method
bration
C1413Test Method for Isotopic Analysis of Hydrolyzed
4
Spectrochemical Determination of Trace Impurity Elements
3
Uranium Hexafluoride and Uranyl Nitrate Solutions by
C1517 Test Method for Determination of Metallic Impurities in Ura-
nium Metal or Compounds by DC-Arc Emission Spectroscopy Thermal Ionization Mass Spectrometry
2
Total Gas by Hot Vacuum Extraction
C1430Test Method for Determination of Uranium, Oxygen
Ceramographic Determination of Free Gd O and Free UO to Esti- 18 to 25
2 3 2
to Uranium (O/U), and Oxygen to Metal (O/M) in
mate the Homogeneity of (U,Gd)O Pellets
2
Sintered Uranium Dioxide and Gadolinia-Uranium Diox-
ide Pellets by Atmospheric Equilibration
1 C1456Test Method for Determination of Uranium or Gado-
These test methods are under the jurisdiction of ASTM C26 on Nuclear Fuel
Cycle and are the direct responsibility of C26.05 on Methods of Test.
linium (or both) in Gadolinium Oxide-Uranium Oxide
Current edition approved Sept. 1, 2019. Published September 2019. Originally
Pellets or by X-Ray Fluorescence (XRF)
approved in 1981. Last previous edition approved in 2012 as C968–12. DOI:
C1457Test Method for Determination of Total Hydrogen
10.1520/C0968-19.
2
ContentofUraniumOxidePowdersandPelletsbyCarrier
Discontinued 1999. See C968–94.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Gas Extraction
contact ASTM Customer Service at s
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C968 − 12 C968 − 19
Standard Test Methods for
Analysis of Sintered Gadolinium Oxide-Uranium Dioxide
1
Pellets
This standard is issued under the fixed designation C968; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
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
2
Carbon (Total) by Direct Combustion—Thermal Conductivity Method
3
C1408 Test Method for Carbon (Total) in Uranium Oxide Powders
and Pellets By Direct Combustion-Infrared Detection Method
4
Chlorine and Fluorine by Pyrohydrolysis Ion-Selective Electrode
Method
3
C1502 Test Method for Determination of Total Chlorine and Fluorine
in Uranium Dioxide and Gadolinium Oxide
4
Gadolinia Content by Energy-Dispersive X-Ray Spectrometry
3
C1456 Test Method for Determination of Uranium or Gadolinium, or
Both, in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray
Fluorescence (XRF)
3
C1456 Test Method for Determination of Uranium or Gadolinium (or
both) in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray
Fluorescence (XRF)
4
Hydrogen by Inert Gas Fusion
3
C1457 Test Method for Determination of Total Hydrogen Content of
Uranium Oxide Powders and Pellets by Carrier Gas Extraction
2
Isotopic Uranium Composition by Multiple-Filament Surface-
Ionization Mass Spectrometric Method
3
C1413 Test Method for Isotopic Analysis of Hydrolysed Uranium
Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization
Mass Spectrometry
3
C1413 Test Method for Isotopic Analysis of Hydrolyzed Uranium
Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization
Mass Spectrometry
3
C1347 Practice for Preparation and Dissolution of Uranium Materials
for Analysis
Nitrogen by Distillation—Nessler Reagent (Photometric) Method 6 to 16
Nitrogen by Distillation—Nessler Reagent (Photometric) Method 7 to 17
4
Oxygen-to-Metal Ratio of Sintered Gadolinium Oxide-Uranium Diox-
ide Pellets
3
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 Equilibra-
tion
3
C1430 Test Method for Determination of Uranium, Oxygen to Ura-
nium (O/U), and Oxygen to Metal (O/M) in Sintered Uranium Diox-
ide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equili-
bration
4
Spectrochemical Determination of Trace Impurity Elements
1
These test methods are under the jurisdiction of ASTM C26 on Nuclear Fuel Cycle and are the direct responsibility of C26.05 on Methods of Test.
Current edition approved Jan. 1, 2012Sept. 1, 2019. Published February 2012September 2019. Originally approved in 1981. Last previous edition approved in 20062012
as C968 – 06.C968 – 12. DOI: 10.1520/C0968-12.10.1520/C0968-19.
2
Discontinued 1999. See C968 – 94.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Discontinued 2005. See C968 – 99.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C968 − 19
Section
3
C1517 Test Method for Determination of Metallic Impurities in Ura-
nium Metal or Compounds by DC-Arc Emission Spectroscopy
2
Total Gas by Hot Vacuum Extraction
Ceramographic Determination of Free Gd O and Free UO to Esti- 17 to 24
2 3 2
mate the Homogeneity of (U,Gd)O Pellets
2
Ceramographic Determination of Free Gd O and Free UO to Esti- 18 to 25
2 3 2
mate the Homogeneity of (U,Gd)O Pellets
2
Ceramographic Determination of Average Grain Size by Linear 25 to 32
Intercept after Chemical Etching
Ceramographic Determination of Average Grain Size by Linear 26 to 33
Intercept after Chemical Etching
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 safety, health, and healthenvironmental practices and determine the
...
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