ASTM D4696-1992(2008) 从渗流区进行孔隙液体取样的标准指南

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【英文标准名称】:StandardGuideforPore-LiquidSamplingfromtheVadoseZone
【原文标准名称】:从渗流区进行孔隙液体取样的标准指南
【标准号】:ASTMD4696-1992(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1992
【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】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:porefluids;pressurevacuumlysimeters;soilmoisture;soilwater;suctionlysimeters;unsaturated;vadosezonesampling;Cellulose-acetatehollow-fibersamplers;Contamination--soil;Experimentalabsorptionsamplers;Fieldtesting--groundwater/aq
【摘要】:Samplingfromthevadosezonemaybeanimportantcomponentofsomegroundwatermonitoringstrategies.Itcanprovideinformationregardingcontaminanttransportandattenuationinthevadosezone.Thisinformationcanbeusedformitigatingpotentialproblemspriortodegradationofagroundwaterresource(1).Thechoiceofappropriatesamplingdevicesforaparticularlocationisdependentonvariouscriteria.SpecificguidelinesfordesigningvadosezonemonitoringprogramshavebeendiscussedbyMorrison(1),Wilson(2),Wilson(3),Everett(4),Wilson(5),Everett,etal(6),Wilson(7),Everett,etal(8),Everett,etal(9),Robbins,etal(10),MerryandPalmer(11),U.S.EPA(12),Ball(13),andWilson(14).Ingeneral,itisprudenttocombinevariousunsaturatedandfreedrainagesamplersintoaprogram,sothatthedifferentflowregimesmaybemonitored.Thisguidedoesnotattempttopresentdetailsofinstallationanduseoftheequipmentdiscussed.However,anefforthasbeenmadetopresentthosereferencesinwhichthespecifictechniquesmaybefound.1.1Thisguidecoverstheequipmentandproceduresusedforsamplingpore-liquidfromthevadosezone(unsaturatedzone).Theguideislimitedtoinsitutechniquesanddoesnotincludesoilcorecollectionandextractionmethodsforobtainingsamples.1.2Thetermx201C;pore-liquidx201D;isapplicabletoanyliquidfromaqueouspore-liquidtooil.However,allofthesamplersdescribedinthisguideweredesigned,andareusedtosampleaqueouspore-liquidsonly.Theabilitiesofthesesamplerstocollectotherpore-liquidsmaybequitedifferentthanthosedescribed.1.3Someofthesamplersdescribedinthisguidearenotcurrentlycommerciallyavailable.Thesesamplersarepresentedbecausetheymayhavebeenavailableinthepast,andmaybeencounteredatsiteswithestablishedvadosezonemonitoringprograms.Inaddition,someofthesedesignsareparticularlysuitedtospecificsituations.Ifneeded,thesesamplerscouldbefabricated.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.6Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Thewordx201C;Standardx201D;inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:P13
【国际标准分类号】:07_060
【页数】:32P.;A4
【正文语种】:英语