Designation:D7982−15StandardPracticeforTestingofFactoryThermo-FusionSeamsforFabricatedGeomembranePanels1ThisstandardisissuedunderthefixeddesignationD7982;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeprovidesmanufacturingqualitycontrolguidanceforthefactoryseamingoffabricatedgeomembranepanels.Thispracticeisnottobeconsideredasall-encompassingsincetherearealargenumberofgeomembranetypes,weldtypesandfabricationprocessesthatcannotbeanticipatedandcoveredinthisdocument.1.2Thispracticeiswrittenforfactoryfabricatedgeomem-branepanelsonlyanddoesnotapplytofieldfabricationon-site.1.3ThispracticedoesnotcoverjoiningofmaterialsduringtheprimarygeomembranemanufacturingprocesssuchasthevulcanizedoverlapsfoundinEPDMsheet.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D4439TerminologyforGeosyntheticsD6392TestMethodforDeterminingtheIntegrityofNonre-inforcedGeomembraneSeamsProducedUsingThermo-FusionMethodsD7408SpecificationforNonReinforcedPVC(PolyvinylChloride)GeomembraneSeamsD7700GuideforSelectingTestMethodsforGeomembraneSeamsD7747TestMethodforDeterminingIntegrityofSeamsProducedUsingThermo-FusionMethodsforReinforcedGeomembranesbytheStripTensileMethodD7749TestMethodforDeterminingIntegrityofSeamsProducedUsingThermo-FusionMethodsforReinforcedGeomembranesbytheGrabMethodD7865GuideforIdentification,Packaging,Handling,Stor-ageandDeploymentofFabricatedGeomembranePanels3.Terminology3.1Fordefinitionoftermsrelatedtogeomembranes,refertoTerminologyD4439.3.2Definitions:3.2.1destructivetestsample—aseamsampletakenbefore,duringorafterproductio...