ASTM D4696-1992(2000) 从渗流区进行孔隙液体取样的标准导则

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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导则
【标准号】:ASTMD4696-1992(2000)
【标准状态】:现行
【国别】:
【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(ASTM)
【起草单位】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:不饱和的;高压;地下水;土壤;纤维素;现场试验;纤维样品;压力;污染;取样
【英文主题词】:porefluids;pressurevacuumlysimeters;soilmoisture;soilwater;suctionlysimeters;unsaturated;vadosezonesampling;
【摘要】:Samplingfromthevadosezonemaybeanimportantcomponentofsomegroundwatermonitoringstrategies.Itcanprovideinformationregardingcontaminanttransportandattenuationinthevadosezone.Thisinformationcanbeusedformitigatingpotentialproblemspriortodegradationofagroundwaterresource(1).6Thechoiceofappropriatesamplingdevicesforaparticularlocationisdependentonvariouscriteria.SpecificguidelinesfordesigningvadosezonemonitoringprogramshavebeendiscussedbyMorrison(1),Wilson(2),Wilson(3),Everett(4),Wilson(5),Everettetal(6),Wilson(7),Everettetal(8),Everettetal(9),Robbinsetal(10),MerryandPalmer(11),U.S.EPA(12),Ball(13),andWilson(14).Ingeneral,itisprudenttocombinevariousunsaturatedandfreedrainagesamplersintoaprogram,sothatthedifferentflowregimesmaybemonitored.Thisguidedoesnotattempttopresentdetailsofinstallationanduseoftheequipmentdiscussed.However,anefforthasbeenmadetopresentthosereferencesinwhichthespecifictechniquesmaybefound.1.1Thisguidediscussesequipmentandproceduresusedforsamplingpore-liquidfromthevadosezone(unsaturatedzone).Theguideislimitedtoin-situtechniquesanddoesnotincludesoilcorecollectionandextractionmethodsforobtainingsamples.1.2Theterm"pore-liquid"isapplicabletoanyliquidfromaqueouspore-liquidtooil.However,allofthesamplersdescribedinthisguideweredesigned,andareusedtosampleaqueouspore-liquidsonly.Theabilitiesofthesesamplerstocollectotherpore-liquidsmaybequitedifferentthanthosedescribed.1.3Someofthesamplersdescribedinthisguidearenotcurrentlycommerciallyavailable.Thesesamplersarepresentedbecausetheymayhavebeenavailableinthepast,andmaybeencounteredatsiteswithestablishedvadosezonemonitoringprograms.Inaddition,someofthesedesignsareparticularlysuitedtospecificsituations.Ifneeded,thesesamplerscouldbefabricated.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject'smanyuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:B10
【国际标准分类号】:07_060
【页数】:32P.;A4
【正文语种】: