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【英文标准名称】:StandardTestMethodforSpecificHeatofRockandSoil
【原文标准名称】:岩石和土壤的比热的标准试验方法
【标准号】:ASTMD4611-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:calibration;calorimeter;enthalpy;equilibriumtemperature;heatingtests-specificheat;rock;soil;temperaturetests;thermalanalysis-diffusivity;Calibration--soil/rockanalysisinstrumentation;Calorimeter;Enthalpy;Equilibriumtemperature;Heating
【摘要】:Specificheatisabasicthermodynamicpropertyofallsubstances.Thevalueofspecificheatdependsuponchemicalcompositionandtemperature.Therateoftemperaturediffusionthroughamaterial,thermaldiffusivity,isafunctionofspecificheat;therefore,specificheatisanessentialpropertyofrockandsoilwhenthesematerialsareusedunderconditionsofunsteadyortransientheatflow.1.1Thistestmethodcoversthedeterminationofinstantaneousandmeanspecificheatofrockandsoil.1.2Thistestmethodemploystheclassicalmethodofmixtures.Thisprovidesproceduresandapparatussimplerthanthosegenerallyusedinscientificcalorimetry,anaccuracythatisadequateformostrocksandsoils,andadegreeofprecisionthatisreproduciblebylaboratorytechniciansofaverageskill.Whilethistestmethodwasdevelopedfortestingrockandsoil,itiseasilyadaptabletomeasuringthespecificheatofothermaterials.1.3Thetestingprocedureprovidesaninstantaneousspecificheatoverthetemperature25to300x00B0;Corameanspecificheatinthattemperaturerange.1.4Thetestprocedureislimitedtodrysamples.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:4P.;A4
【正文语种】:英语