Designation:D7002−22StandardPracticeforElectricalLeakLocationonExposedGeomembranesUsingtheWaterPuddleMethod1ThisstandardisissuedunderthefixeddesignationD7002;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeisaperformance-basedstandardforanelectricalmethodforlocatingleaksinexposedgeomembranes.Forclarity,thispracticeusestheterm“leak”tomeanholes,punctures,tears,knifecuts,seamdefects,cracks,andsimilarbreachesinaninstalledgeomembrane(asdefinedin3.2.6).1.2Thispracticecanbeusedforgeomembranesinstalledinbasins,ponds,tanks,oreandwastepads,landfillcells,landfillcaps,canals,andothercontainmentfacilities.Itisapplicableforgeomembranesmadeofmaterialssuchaspolyethylene,polypropylene,polyvinylchloride,chlorosulfonatedpolyethylene,bituminousgeomembrane,andanyotherelectri-callyinsulatingmaterials.Thispracticeisbestapplicableforlocatinggeomembraneleakswheretheproperpreparationshavebeenmadeduringtheconstructionofthefacility.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D4439TerminologyforGeosyntheticsD6747GuideforSelectionofTechniquesforElectricalLeakLocationofLeaksinGeomembranesD7703PracticeforElectricalLeakLocationonExposedG...
