ASTM D6565-2000(2005) 用时域反射计法测定土壤中水含量的标准试验方法
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【英文标准名称】:StandardTestMethodforDeterminationofWater(Moisture)ContentofSoilbytheTime-DomainReflectometry(TDR)Method
【原文标准名称】:用时域反射计法测定土壤中水含量的标准试验方法
【标准号】:ASTMD6565-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Baluntransformer;multiplexers;propagationvelocity;soilsamples;TDRprobes;timedomainreflectometry(TDR);volumetricwater(moisture)content
【摘要】:Thedeterminationofthewater-content,ormoisturecontent,ofsoilisoneofthefundamentalneedsinthesoilphysicsandhydrologydisciplines.Theneedarisesfromrequirementsfordefiningtheoptimaltimeforirrigation,theinfiltrationrate,thesoil-moistureflux,contaminanttransportrates,andevaluatingthepotentialforleakagefromawastesiteorasurfaceorsubsurfacebarrier.TheTDRapplicationcoveredinthistestmethodisthatusedforpointmeasurementsofmoisturecontentinsoil.Theapplicationiseitherthroughmanualinsertionintothesoilorbyburyingaprobeinthesubsurfacetoacquiremoisturecontentdataataspecificlocation.Inaddition,coresamplesmaybetestedwithTDRatadrillsitetoacquirereal-timesoilmoisturedata.1.1Thistestmethodcoversthedeterminationofwatercontent(ormoisturecontent)insoilbytheuseoftheelectromagnetictechniquecalledTime-DomainReflectometry(TDR).1.2ThistestmethodwaswrittentodetailtheprocedureforconventionalTDRmeasurementsofsoil.OtherTDRapplicationsexistforthepurposeofquantifyingwatercontentinsoilandarenotcoveredhere,suchasflatprobetechnologiesandwettingfrontadvancemethods.1.3CommercialTDRapplicationsexistwhichautomatetheTDRmethodologyandarenotdetailedinthistestmethod.Itislikelythatoverlapexistsintheautomatedcommercialsystemsversusthisappliedmethod,andtheuserisencouragedtoadheretothistestmethodwhenapplicable.1.4Thistestmethodisoneofaseriesonvadosezonecharacterizationmethods.Otherstandardshavebeenpreparedonvadosezonecharacterizationtechniques.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:用时域反射计法测定土壤中水含量的标准试验方法
【标准号】:ASTMD6565-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Baluntransformer;multiplexers;propagationvelocity;soilsamples;TDRprobes;timedomainreflectometry(TDR);volumetricwater(moisture)content
【摘要】:Thedeterminationofthewater-content,ormoisturecontent,ofsoilisoneofthefundamentalneedsinthesoilphysicsandhydrologydisciplines.Theneedarisesfromrequirementsfordefiningtheoptimaltimeforirrigation,theinfiltrationrate,thesoil-moistureflux,contaminanttransportrates,andevaluatingthepotentialforleakagefromawastesiteorasurfaceorsubsurfacebarrier.TheTDRapplicationcoveredinthistestmethodisthatusedforpointmeasurementsofmoisturecontentinsoil.Theapplicationiseitherthroughmanualinsertionintothesoilorbyburyingaprobeinthesubsurfacetoacquiremoisturecontentdataataspecificlocation.Inaddition,coresamplesmaybetestedwithTDRatadrillsitetoacquirereal-timesoilmoisturedata.1.1Thistestmethodcoversthedeterminationofwatercontent(ormoisturecontent)insoilbytheuseoftheelectromagnetictechniquecalledTime-DomainReflectometry(TDR).1.2ThistestmethodwaswrittentodetailtheprocedureforconventionalTDRmeasurementsofsoil.OtherTDRapplicationsexistforthepurposeofquantifyingwatercontentinsoilandarenotcoveredhere,suchasflatprobetechnologiesandwettingfrontadvancemethods.1.3CommercialTDRapplicationsexistwhichautomatetheTDRmethodologyandarenotdetailedinthistestmethod.Itislikelythatoverlapexistsintheautomatedcommercialsystemsversusthisappliedmethod,andtheuserisencouragedtoadheretothistestmethodwhenapplicable.1.4Thistestmethodisoneofaseriesonvadosezonecharacterizationmethods.Otherstandardshavebeenpreparedonvadosezonecharacterizationtechniques.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:
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