ASTM_C_1853_-_17.pdf

Designation:C185317Standard Test Method forThe Determination of Carbon(Total)Content in Mixed Oxide(U,Pu)O2)Sintered Pellets by Direct Combustion-InfraredDetection Method1This standard is issued under the fixed designation C1853;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method is an alternative to Test Method C698for the determination of carbon in nuclear grade sintered mixedoxide(MOX)fuel pellets.The method for the determination ofcarbon presented in Test Method C698 consists of combustingcarbon contained in MOX pellets with oxygen in a high-frequency induction furnace and detecting the resulting carbondioxide using a thermal conductivity cell.The method for thedetermination of carbon presented in this test method consistsof combusting carbon contained in MOX pellets with oxygenin a high-frequency induction furnace and subsequent detectionof the resulting carbon dioxide(CO2)using a non-dispersiveinfrared detector(NDIR).Sulfur oxide is stripped from thecarrier gas stream by a cellulose filter prior to the detection ofCO2.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard may involve hazardous material,operations,and equipment.This standard does not purport toaddress all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toconsult and establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C698 Test Methods for Chemical,Mass Spectrometric,andSpectrochemical Analysis of Nuclear-Grade Mixed Ox-ides(U,Pu)O2)C753 Specification for Nuclear-Grade,Sinterable UraniumDioxide PowderC757 Specification for Nuclear-Grade Plutonium DioxidePowder for Light Water ReactorsC833 Specification for Sintered(Uranium-Plutonium)Diox-ide Pellets for Light Water ReactorsC859 Terminology Relating to Nuclear MaterialsC1068 Guide for Qualification of Measurement Methods bya Laboratory Within the Nuclear IndustryC1408 Test Method for Carbon(Total)in Uranium OxidePowders and Pellets By Direct Combustion-Infrared De-tection Method2.2 ISO Standards:3ISO 21614 Nuclear Fuel Technology Determination ofCarbon Content of UO2,(U,Gd)O2and(U,Pu)O2Pow-ders and Sintered Pellets Combustion in a High-Frequency Induction Furnace Infrared Absorption Spec-trometry3.Terminology3.1 For definitions of terms used in this test method but notdefined herein,refer to terminology relating to nuclear mate-rials in Terminology C859.3.2 Definitions of Terms Specific to This Standard:3.2.1 MOXnuclear fuel composed of a mixture of uraniumand plutonium oxides(U,Pu)O2).1This test method is under the jurisdiction ofASTM Committee C26 on NuclearFuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods ofTest.Current edition approved June 1,2017.Published June 2017.DOI:10.1520/C1853-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from International Organization for Standardization(ISO),ISOCentral Secretariat,BIBC II,Chemin de Blandonnet 8,CP 401,1214 Vernier,Geneva,Switzerland,http:/www.iso.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2.2 sinteringthe process of forming a solid mass ofmaterial by heat or pressure,or both,without melting it to thepoint of liquefaction.3.2.3 reference materialnon-matrix matched materialtraceable to a reference material from a national standards bodysuch as the U.S.National Institute for Standards and Technol-ogy(NIST)or equivalent;matrix matched reference materialsfor MOX pellets are not available.3.3 Acronyms:3.3.1 NDIRNon Dispersive Infrared Detector.3.3.2 THCTotal Hydrocarbon4.Summary of Test Method4.1 The method consists of crushing a MOX pellet,weigh-ing an approximately 1 g fragment of the pellet into a cruciblewith