ASTM_C_1187_-_15.pdf

Designation:C118715Standard Guide forEstablishing Surveillance Test Program for Boron-BasedNeutron Absorbing Material Systems for Use in Nuclear FuelStorage Racks In a Pool Environment1This standard is issued under the fixed designation C1187;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 guide provides guidance for establishing a surveil-lance test program to monitor the performance of boron-basedneutron absorbing material systems(absorbers)necessary tomaintain sub-criticality in nuclear fuel storage racks in a poolenvironment.The practices presented in this guide,whenimplemented,will provide a comprehensive surveillance testprogram to verify the functionality and integrity of the neutronabsorbing material within the storage racks.The performanceof a surveillance test program provides added assurance of thesafe and effective operation of a high-density storage facilityfor nuclear fuel.There are several different techniques forsurveillance testing of boron-based neutron absorbing materi-als.This guide focuses on coupon monitoring and in-situtesting.1.2 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C992 Specification for Boron-Based Neutron AbsorbingMaterial Systems for Use in Nuclear Spent Fuel StorageRacksC1068 Guide for Qualification of Measurement Methods bya Laboratory Within the Nuclear IndustryD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD430 Test Methods for Rubber DeteriorationDynamicFatigueD518 Test Method for Rubber DeteriorationSurfaceCracking(Withdrawn 2007)3D813 Test Method for Rubber DeteriorationCrack GrowthD1415 Test Method for Rubber PropertyInternationalHardnessD2240 Test Method for Rubber PropertyDurometer Hard-nessD3183 Practice for RubberPreparation of Pieces for TestPurposes from ProductsD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustriesE6 Terminology Relating to Methods of Mechanical TestingE8 Test Methods for Tension Testing of Metallic MaterialsE23 Test Methods for Notched Bar Impact Testing of Me-tallic MaterialsE45 Test Methods for Determining the Inclusion Content ofSteelE74 Practice of Calibration of Force-Measuring Instrumentsfor Verifying the Force Indication of Testing MachinesE290 Test Methods for Bend Testing of Material for Ductil-ityE2971 Test Method for Determination of Effective Boron-10Areal Density in Aluminum Neutron Absorbers usingNeutron Attenuation MeasurementsG1 Practice for Preparing,Cleaning,and Evaluating Corro-sion Test SpecimensG4 Guide for Conducting Corrosion Tests in Field Applica-tionsG15 Terminology Relating to Corrosion and Corrosion Test-ing(Withdrawn 2010)3G16 Guide for Applying Statistics to Analysis of CorrosionDataG46 Guide for Examination and Evaluation of Pitting Cor-rosionG69 Test Method for Measurement of Corrosion Potentialsof Aluminum Alloys1This guide is under the jurisdiction of ASTM Committee C26 on Nuclear FuelCycle and is the direct responsibility of Subcommittee C26.03 on NeutronAbsorberMaterials Specifications.Current edition approved June 1,2015.Published July 2015.Originally approvedin 1991.Last previous edition approved in 2007 as C1187 07.DOI:10.1520/C1187-15.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 absorbera boron-based neutron-absorbing materialsystem.3.1.2 confirmation teststests that may be necessary toconfirm the continued functionality and integrity of the neutronabsorber.3.1.3 degradationa change in a material property thatlessens the original design functionality.3.1.4 high-density storagethe close-packing of fuel to theextent that absorbers are required for neutron flux reduction toassure adequate sub-criticality margin.3.1.5 in-situ neutron attenuation testa qualitative or quan-titative test using a neutron source for determining neutronabsorbing functionalities.3.1.6 in-situ testremote characterization of absorber ma-terial in the storage racks.3.1.7 irradiation(flux)the incidence of neutron andgamma radiation from fuel assemblies on materials in a