【英文标准名称】:StandardGuideforFieldPreservationofGround-WaterSamples
【原文标准名称】:地下水样品现场保护的标准指南
【标准号】:ASTMD6517-2000(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】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:chemicalpreservation;ground-watersampling;holdingtime;physicalpreservation;preservative;samplepreservation;temperatureblank
【摘要】:Ground-watersamplesaresubjecttochemical,physical,andbiologicalchangerelativetoin-situconditionsatthegroundsurfacesasaresultofexposuretoambientconditionsduringsamplecollection(forexample,pressure,temperature,ultravioletradiation,atmosphericoxygen,andcontaminants)(1)(2).5Physicalandchemicalpreservationofsamplesminimizefurtherchangesinsamplechemistrythatcanoccurfromthemomenttheground-watersampleisretrieved,tothetimeitisremovedfromthesamplecontainerforextractionoranalysis,orboth.Measuresalsomustbetakentopreservethephysicalintegrityofthesamplecontainer.Theneedforsamplepreservationforspecificanalytesshouldbedefinedpriortothesamplingeventanddocumentedinthesite-specificsamplingandanalysisplaninaccordancewithGuideD5903.Thedecisiontopreserveasampleshouldbemadeonaparameter-specificbasisasdefinedbyindividualanalyticalmethods.1.1Thisguidecoversmethodsforfieldpreservationofground-watersamples.Laboratorypreservationmethodsarenotdescribedinthisguide.1.2Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.3Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:D04
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】: