ASTM D5744-2007 湿度指示器测定固体材料的实验室风化用标准试验方法
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【英文标准名称】:StandardTestMethodforLaboratoryWeatheringofSolidMaterialsUsingaHumidityCell
【原文标准名称】:湿度指示器测定固体材料的实验室风化用标准试验方法
【标准号】:ASTMD5744-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D34.01.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化学的;湿度;金属;矿石;处理;测试;试验;抗风化
【英文主题词】:chemicalweathering;humiditycell;laboratoryweathering;milltailings;ore;oxidation;solidmaterial;wasterock
【摘要】:1.1Thiskinetictestmethodcoversalaboratoryweatheringprocedurethat(1)enhancesreaction-producttransportintheaqueousleachofasolidmaterialsampleofspecifiedmass,and(2)measuresratesofweathering-productmassrelease.Solubleweatheringproductsaremobilizedbyafixed-volumeaqueousleachthatisperformedandcollectedweekly.LeachatesamplesareanalyzedforpH,alkalinity/acidity,specificconductance,sulfate,andotherselectedanalytes.1.1.1Thistestmethodisintendedforusetomeetkinetictestingregulatoryrequirementsforminingwasterockandoressizedtopassa6.3-mm(0.25-in.)Tylerscreen.1.1.2Interlaboratorytestingofthismethodhasbeenconfinedtominewasterock.Applicationofthistestmethodtometallurgical-processingwaste(forexample,milltailings)isoutsidethescopeofthetestmethod.1.2Thistestmethodisamodificationofalaboratoryweatheringproceduredevelopedoriginallyforminingwastes(1-3).However,itmayhaveusefulapplicationwherevergaseousoxidationcoupledwithaqueousleachingareimportantmechanismsforcontaminantmobility.1.3Thistestmethodcallsfortheweeklyleachingofawell-characterizedsolidmaterialsample(weighingatleast1000-g),withwaterofspecifiedpurity,andthecollectionandchemicalcharacterizationoftheresultingleachate.Testdurationisdeterminedbytheusersobjectivesofthetest.1.4Asdescribed,thistestmethodmaynotbesuitableforsomematerialscontainingplastics,polymers,orrefinedmetals.Thesematerialsmayberesistanttotraditionalparticlesizereductionmethods.1.5Additionally,thistestmethodhasnotbeentestedforapplicabilitytoorganicsubstancesandvolatilematter.1.6Thistestmethodisnotintendedtoprovideleachatesthatareidenticaltotheactualleachateproducedfromasolidmaterialinthefieldortoproduceleachatestobeusedasthesolebasisofengineeringdesign.1.7Thistestmethodisnotintendedtosimulatesite-specificleachingconditions.Ithasnotbeendemonstratedtosimulateactualdisposalsiteleachingconditions.Furthermore,thetestisnotdesignedtoproduceeffluentsthatareinchemicalequilibriumwiththesolidphasesample.1.8Thistestmethodisintendedtodescribetheprocedureforperformingthelaboratoryweatheringofsolidmaterialstogenerateleachates.Itdoesnotdescribealltypesofsamplingandanalyticalrequirementsthatmaybeassociatedwithitsapplication.1.9ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:19P.;A4
【正文语种】:
【原文标准名称】:湿度指示器测定固体材料的实验室风化用标准试验方法
【标准号】:ASTMD5744-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D34.01.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化学的;湿度;金属;矿石;处理;测试;试验;抗风化
【英文主题词】:chemicalweathering;humiditycell;laboratoryweathering;milltailings;ore;oxidation;solidmaterial;wasterock
【摘要】:1.1Thiskinetictestmethodcoversalaboratoryweatheringprocedurethat(1)enhancesreaction-producttransportintheaqueousleachofasolidmaterialsampleofspecifiedmass,and(2)measuresratesofweathering-productmassrelease.Solubleweatheringproductsaremobilizedbyafixed-volumeaqueousleachthatisperformedandcollectedweekly.LeachatesamplesareanalyzedforpH,alkalinity/acidity,specificconductance,sulfate,andotherselectedanalytes.1.1.1Thistestmethodisintendedforusetomeetkinetictestingregulatoryrequirementsforminingwasterockandoressizedtopassa6.3-mm(0.25-in.)Tylerscreen.1.1.2Interlaboratorytestingofthismethodhasbeenconfinedtominewasterock.Applicationofthistestmethodtometallurgical-processingwaste(forexample,milltailings)isoutsidethescopeofthetestmethod.1.2Thistestmethodisamodificationofalaboratoryweatheringproceduredevelopedoriginallyforminingwastes(1-3).However,itmayhaveusefulapplicationwherevergaseousoxidationcoupledwithaqueousleachingareimportantmechanismsforcontaminantmobility.1.3Thistestmethodcallsfortheweeklyleachingofawell-characterizedsolidmaterialsample(weighingatleast1000-g),withwaterofspecifiedpurity,andthecollectionandchemicalcharacterizationoftheresultingleachate.Testdurationisdeterminedbytheusersobjectivesofthetest.1.4Asdescribed,thistestmethodmaynotbesuitableforsomematerialscontainingplastics,polymers,orrefinedmetals.Thesematerialsmayberesistanttotraditionalparticlesizereductionmethods.1.5Additionally,thistestmethodhasnotbeentestedforapplicabilitytoorganicsubstancesandvolatilematter.1.6Thistestmethodisnotintendedtoprovideleachatesthatareidenticaltotheactualleachateproducedfromasolidmaterialinthefieldortoproduceleachatestobeusedasthesolebasisofengineeringdesign.1.7Thistestmethodisnotintendedtosimulatesite-specificleachingconditions.Ithasnotbeendemonstratedtosimulateactualdisposalsiteleachingconditions.Furthermore,thetestisnotdesignedtoproduceeffluentsthatareinchemicalequilibriumwiththesolidphasesample.1.8Thistestmethodisintendedtodescribetheprocedureforperformingthelaboratoryweatheringofsolidmaterialstogenerateleachates.Itdoesnotdescribealltypesofsamplingandanalyticalrequirementsthatmaybeassociatedwithitsapplication.1.9ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:19P.;A4
【正文语种】:
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