Designation:D1587−08(Reapproved2012)´1StandardPracticeforThin-WalledTubeSamplingofSoilsforGeotechnicalPurposes1ThisstandardisissuedunderthefixeddesignationD1587;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.ε1NOTE—EditorialchangesweremadethroughoutinMay2012.1.Scope1.1Thispracticecoversaprocedureforusingathin-walledmetaltubetorecoverrelativelyintactsoilsamplessuitableforlaboratorytestsofengineeringproperties,suchasstrength,compressibility,permeability,anddensity.Thin-walledtubesusedinpiston,plug,orrotary-typesamplersshouldcomplywithSection6.3ofthispracticewhichdescribesthethin-walledtubes.NOTE1—Thispracticedoesnotapplytolinersusedwithinthesamplers.1.2Thispracticeislimitedtosoilsthatcanbepenetratedbythethin-walledtube.Thissamplingmethodisnotrecom-mendedforsamplingsoilscontaininggravelorlargersizesoilparticles,cemented,orveryhardsoils.Othersoilsamplersmaybeusedforsamplingthesesoiltypes.Suchsamplersincludedrivensplitbarrelsamplersandsoilcoringdevices(D1586,D3550,andD6151).ForinformationonappropriateuseofothersoilsamplersrefertoD6169.1.3Thispracticeisoftenusedinconjunctionwithfluidrotarydrilling(D1452,D5783)orhollow-stemaugers(D6151).Subsurfacegeotechnicalexplorationsshouldbere-portedinaccordancewithpractice(D5434).Thispracticediscussessomeaspectsofsamplepreservationafterthesam-plingevent.Forinformationonpreservationandtransportationprocessofsoilsamples,consultPracticeD4220.Thispracticedoesnotaddressenvironmentalsampling;consultD6169andD6232forinformationonsamplingforenvironmentalinves-tigations.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4.1Thet...
