Designation:D5890−19StandardTestMethodforSwellIndexofClayMineralComponentofGeosyntheticClayLiners1ThisstandardisissuedunderthefixeddesignationD5890;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversanindexmethodthatenablestheevaluationofswellingpropertiesofaclaymineralinreagentwaterforestimationofitsusefulnessingeosyntheticclayliners(GCLs).Thistestmethodisnotapplicableforclayswithpolymers.1.2ItisadaptedfromUnitedStatesPharmacopeia(USP-NF-XVII)testmethodforbentonite.1.3Powderedclaymineralistestedafterdryingtoconstantweightat10565°C;granularclaymineralshouldbegroundto100%passinga150-µm(No.100)U.S.StandardSievewithaminimumof65%passinga75-µm(No.200)U.S.StandardSieve.Thebentonitepassingthe150-µmU.S.StandardSieveisusedfortestingafterdryingtoconstantweightat10565°C.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD4643TestMethodforDeterminationofWaterContentofSoilandRockbyMicrowaveOvenHeatingD4753GuideforEvaluating,Selecting,andSpecifyingBal-ancesandStandardMassesforUseinSoil,Rock,andConstructionMaterialsTestingE1SpecificationforASTMLiquid-in-GlassThermometersE145Specification...
