Designation:D5434−12StandardGuideforFieldLoggingofSubsurfaceExplorationsofSoilandRock1ThisstandardisissuedunderthefixeddesignationD5434;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisguidedescribesthetypeofinformationthatshouldberecordedduringfieldsubsurfaceexplorationsinsoilandrock.1.2Thisguideisnotintendedtospecifyalloftheinforma-tionrequiredforpreparingfieldlogs.Suchrequirementswillvarydependingonthepurposeoftheinvestigation,theintendeduseofthefieldlog,andparticularneedsoftheclientoruser.1.3Thisguideisapplicabletoboreholes,augerholes,excavatedpits,orothersubsurfaceexposuressuchasroadsidecutsorstreambanks.ThisguidemayserveasasupplementtoGuideD420.1.4Thisguidemaynotbesuitedtoalltypesofsubsurfaceexplorationsuchasmining,agricultural,geologichazardouswaste,orotherspecialtypesofexploration.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.6Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepre-sentorreplacethestandardofcareofwhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject’smanyuniqueaspects.Theword“Standard”inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.2.ReferencedDocuments2.1ASTMStandards:2D420GuidetoSiteCharacterizationforEngineeringDesignandConstructionPurposes(Withdrawn2011)3D653Terminolo...
