ASTM C781-2008 Standard Practice for Testing Graphite and Boronated Graphite Materials for High-Temperature Gas-Cooled Nuclear Reactor Components《高温气冷核反应部件用石墨及硼酸化石墨元材料试验的标准实施规程》.pdf
《ASTM C781-2008 Standard Practice for Testing Graphite and Boronated Graphite Materials for High-Temperature Gas-Cooled Nuclear Reactor Components《高温气冷核反应部件用石墨及硼酸化石墨元材料试验的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM C781-2008 Standard Practice for Testing Graphite and Boronated Graphite Materials for High-Temperature Gas-Cooled Nuclear Reactor Components《高温气冷核反应部件用石墨及硼酸化石墨元材料试验的标准实施规程》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C 781 08An American National StandardStandard Practice forTesting Graphite and Boronated Graphite Materials for High-Temperature Gas-Cooled Nuclear Reactor Components1This standard is issued under the fixed designation C 781; the number immediately following the designation indicates th
2、e 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. Scope*1.1 This practice covers the test methods for measuri
3、ng theproperties of graphite and boronated graphite materials. Theseproperties may be used for the design and evaluation ofhigh-temperature gas-cooled reactor components.1.2 The test methods referenced herein are applicable tomaterials used for replaceable and permanent components asdefined in Secti
4、on 7 and Section 9, and includes fuel elements;removable reflector elements and blocks; permanent sidereflector elements and blocks; core support pedestals andelements; control rod, reserve shutdown, and burnable poisoncompacts; and neutron shield material.1.3 This practice includes test methods tha
5、t have beenselected from existing ASTM standards, ASTM standards thathave been modified, and new ASTM standards that are specificto the testing of materials listed in 1.2. Comments on individualtest methods for graphite and boronated graphite componentsare given in Sections 8 and 10, respectively. T
6、he test methodsare summarized in Tables 1 and 2.1.4 The values stated in SI units are to be regarded asstandard. The values given in parentheses are for informationonly.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility o
7、f 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:2C 559 Test Method for Bulk Density by Physical Measure-ments of Manufactured Carbon and Graphite Articl
8、esC 561 Test Method for Ash in a Graphite SampleC 577 Test Method for Permeability of RefractoriesC611 Test Method for Electrical Resistivity of Manufac-tured Carbon and Graphite Articles at Room TemperatureC 625 Practice for Reporting Irradiation Results on Graph-iteC 651 Test Method for Flexural S
9、trength of ManufacturedCarbon and Graphite Articles Using Four-Point Loading atRoom TemperatureC 695 Test Method for Compressive Strength of Carbonand GraphiteC 709 Terminology Relating to Manufactured Carbon andGraphiteC 747 Test Method for Moduli of Elasticity and Fundamen-tal Frequencies of Carbo
10、n and Graphite Materials by SonicResonanceC 749 Test Method for Tensile Stress-Strain of Carbon andGraphiteC 769 Test Method for Sonic Velocity in ManufacturedCarbon and Graphite Materials for Use in Obtaining anApproximate Youngs ModulusC 816 Test Method for Sulfur in Graphite by Combustion-Iodomet
11、ric Titration MethodC 838 Test Method for Bulk Density of As-ManufacturedCarbon and Graphite ShapesC 1039 Test Methods for Apparent Porosity, Apparent Spe-cific Gravity, and Bulk Density of Graphite ElectrodesC 1179 Test Method for Oxidation Mass Loss of Manufac-tured Carbon and Graphite Materials i
12、n AirC 1233 Practice for Determining Equivalent Boron Con-tents of Nuclear MaterialsC 1274 Test Method for Advanced Ceramic Specific Sur-face Area by Physical AdsorptionD 346 Practice for Collection and Preparation of CokeSamples for Laboratory AnalysisD 1193 Specification for Reagent WaterD 2854 Te
13、st Method for Apparent Density of ActivatedCarbonD 2862 Test Method for Particle Size Distribution ofGranular Activated CarbonD 3104 Test Method for Softening Point of Pitches (MettlerSoftening Point Method)D 4292 Test Method for Determination of Vibrated Bulk1This practice is under the jurisdiction
14、 of ASTM Committee D02 on PetroleumProducts and Lubricants and is the direct responsibility of Subcommittee D02.F0 onManufactured Carbon and Graphite Products.Current edition approved Sept. 1, 2008. Published October 2008. Originallyapproved in 1977. Last previous edition approved in 2002 as C 78102
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.1*A Summary of Changes section appears at the end of this st
16、andard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Density of Calcined Petroleum CokeD 5600 Test Method for Trace Metals in Petroleum Coke byInductively Coupled Plasma Atomic Emission Spectrom-etry (ICP-AES)D 7219 Specification fo
17、r Isotropic and Near-isotropicNuclear GraphitesE11 Specification for Wire Cloth and Sieves for TestingPurposesE 132 Test Method for Poissons Ratio at Room Tempera-tureE 228 Test Method for Linear Thermal Expansion of SolidMaterials With a Push-Rod DilatometerE 261 Practice for Determining Neutron Fl
18、uence, FluenceRate, and Spectra by Radioactivation TechniquesE 639 Test Method for Measuring Total-Radiance Tempera-ture of Heated Surfaces Using a Radiation PyrometerE 1461 Test Method for Thermal Diffusivity by the FlashMethod3. Terminology3.1 DefinitionsTerminology C 709 shall be considered asapp
19、lying to the terms used in this practice.4. Significance and Use4.1 Property data obtained with the recommended testmethods identified herein may be used for research anddevelopment, design, manufacturing control, specifications,performance evaluation, and regulatory statutes pertaining tohigh tempe
20、rature gas-cooled reactors.4.2 The test methods are applicable primarily to specimensin the non-irradiated and non-oxidized state. Many are alsoapplicable to specimens in the irradiated or oxidized state, orboth, provided the specimens meet all requirements of the testmethod. The user is cautioned t
21、o consider the instructionsgiven in the test methods.4.3 Additional test methods are in preparation and will beincorporated. The user is cautioned to employ the latestrevision.TABLE 1 Summary of Test Methods for Graphite ComponentsNOTEDesignations under preparation will be added when approved.Fuel,
22、Removable Reflector,and Core Support Elements;Pebble Bed Reflector,Key and Sleeves;and Dowel PinsPermanent SideReflector Elementsand Dowel PinsCore Support Pedestalsand DowelsFabricationAs Manufactured Bulk Density C 838 C 838 C 838Mechanical PropertiesCompressive Strength C 695 C 695 C 695Tensile P
23、roperties C 749AC 749AC 749APoissons Ratio E 132BE 132BE 132BFlexural Strength C 651AC 651AC 651AFracture ToughnessBBModulus of Elasticity C 747 C 747 C 747Physical PropertiesBulk DensityMachined Specimens C 559 C 559 C 559Surface Area (BET) C 1274 C 1274 C 1274Permeability C 577A,BC 577A,BC 577A,BA
24、pparent Porosity C 1039 C 1039 C 1039Spectroscopic AnalysisBBElectrical Resistivity C611 C611 C611Thermal PropertiesLinear Thermal Expansion E 228AThermal Conductivity E 1461AE 1461AE 1461AChemical PropertiesOxidative Mass Loss C 1179BC 1179BC 1179BSulfur Concentration C 816 C 816 C 816Ash Content C
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