Designation:D6707/D6707M−06(Reapproved2019)StandardSpecificationforCircular-KnitGeotextileforUseinSubsurfaceDrainageApplications1ThisstandardisissuedunderthefixeddesignationD6707/D6707M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverscircular-knitgeotextilesforuseontheoutsideofperforatedpipesandClassBgeocom-positesperSpecificationD7001indrainageapplications.1.2Thetestsusedtocharacterizethegeotextileareintendedtoensuregoodworkmanshipandquality,andarenotneces-sarilyadequatefordesignpurposesinviewoftheimportanceofenvironmentalfactorsandspecificperformanceobjectives.Testshavebeenselectedwithessentiallyneutralaqueoussystemsinmind.Othertestsmaybenecessarytoestablishchemicalresistanceanddurabilityundertheconditionsofaparticularapplication.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD4439TerminologyforGeosyntheticsD4491/D4491MTestMethodsforWaterPermeabilityofGeotextilesbyPermittivityD4751TestMethodsforDeterminin...
