Designation:D5093−15StandardTestMethodforFieldMeasurementofInfiltrationRateUsingDouble-RingInfiltrometerwithSealed-InnerRing1ThisstandardisissuedunderthefixeddesignationD5093;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribesaprocedureformeasuringtheinfiltrationrateofwaterthroughin-placesoilsusingadouble-ringinfiltrometerwithasealedinnerring.1.2Thistestmethodisusefulforsoilswithinfiltrationratesintherangeof1×10−5cm/sto1×10−8cm/s.Wheninfiltra-tionrates≥1×10−5cm/saretobemeasuredTestMethodD3385shallbeused.1.3AllobservedandcalculatedvaluesshallconformtotheguideforsignificantdigitsandroundingestablishedinPracticeD6026.1.3.1Themethodusedtospecifyhowdataarecollected,calculated,orrecordedinthisstandardisnotdirectlyrelatedtotheaccuracytowhichthedatacanbeappliedindesignorotheruses,orboth.Howoneappliestheresultsobtainedusingthisstandardisbeyonditsscope.1.4Thistestmethodprovidesadirectmeasurementofinfiltrationrate,nothydraulicconductivity.Althoughtheunitsofinfiltrationrateandhydraulicconductivityaresimilar,thereisadistinctdifferencebetweenthesetwoquantities.Theycannotbedirectlyrelatedunlessthehydraulicboundaryconditions,suchashydraulicgradientandtheextentoflateralflowofwaterareknownorcanbereliablyestimated.1.5Thistestmethodcanbeusedfornaturalsoildeposits,recompactedsoillayers,andamendedsoilssuchassoilbentoniteandsoillimemixtures.1.6Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunits,whichareprovidedforinformationonlyandarenotconsideredstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulat...
