Designation:D1452/D1452M−16StandardPracticeforSoilExplorationandSamplingbyAugerBorings1ThisstandardisissuedunderthefixeddesignationD1452/D1452M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thispracticecoversequipmentandproceduresfortheuseofearthaugersinshallowdepthgeotechnicalexploration.Thispracticedoesnotapplytohollow-stemaugers.Usesofhollow-stemaugerdrillingmethodsforgeotechnicalexplora-tionareaddressedinTestMethodD6151.SamplesrecoveredfromthisstandardareconsideredasbelongingtoGroupAorBinaccordancewithD4220.Thesamplesaredisturbedandcangenerallybeusedforclassificationtesting(D2487,D2488),determinationofcompactioncharacteristics(D698,D1557),oranyotherstandardthatrequiresbulksamples.Forobtainingintactsamplesuseofthin-walledsampletubes(D1587)inconjunctionwithfluidrotarydrilling(D5783)orhollow-stemaugers(D6151)maybeconsidered.1.2Thispracticedoesnotincludeconsiderationsforgeoen-vironmentalsitecharacteristicsandinstallationofmonitoringwellswhicharediscussedinGuideD5784.1.3Thevaluesstatedineitherinch-poundunitsorSIunitspresentedinbracketsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard1.4AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026unlesssupersededbythismethod.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.6Thispracticeoffersasetofinstructionsforperfor...
