Designation:D4439−15aStandardTerminologyforGeosynthetics1ThisstandardisissuedunderthefixeddesignationD4439;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.ReferencedDocuments1.1ASTMStandards:2C125TerminologyRelatingtoConcreteandConcreteAg-gregatesD1987TestMethodforBiologicalCloggingofGeotextileorSoil/GeotextileFiltersD4354PracticeforSamplingofGeosyntheticsandRolledErosionControlProducts(RECPs)forTestingD4491/D4491MTestMethodsforWaterPermeabilityofGeotextilesbyPermittivityD4533/D4533MTestMethodforTrapezoidTearingStrengthofGeotextilesD4594/D4594MTestMethodforEffectsofTemperatureonStabilityofGeotextilesD4595TestMethodforTensilePropertiesofGeotextilesbytheWide-WidthStripMethodD4632/D4632MTestMethodforGrabBreakingLoadandElongationofGeotextilesD4716/D4716MTestMethodforDeterminingthe(In-plane)FlowRateperUnitWidthandHydraulicTransmissivityofaGeosyntheticUsingaConstantHeadD4751TestMethodforDeterminingApparentOpeningSizeofaGeotextileD4759PracticeforDeterminingtheSpecificationConfor-manceofGeosyntheticsD4833/D4833MTestMethodforIndexPunctureResistanceofGeomembranesandRelatedProductsD4873GuideforIdentification,Storage,andHandlingofGeosyntheticRollsandSamplesD4884/D4884MTestMethodforStrengthofSewnorBondedSeamsofGeotextilesD4885TestMethodforDeterminingPerformanceStrengthofGeomembranesbytheWideStripTensileMethodD5101TestMethodforMeasuringtheFiltrationCompat-ibilityofSoil-GeotextileSystemsD5141TestMethodforDeterminingFilteringEfficiencyandFlowRateoftheFiltrationComponentofaSedimentRetentionDeviceD5262TestMethodforEvaluatingtheUnconfinedTensionCreepandCreepRuptureBehaviorofGeosyntheticsD5322PracticeforLaboratoryImmersionProceduresforEvaluatingtheChemicalResistanceofGeosyntheticstoLiquidsD5323PracticeforDeterminationof2%SecantModulusforPolyethyleneGeomembranesD5397TestMetho...