Thisinternationalstandardwasdevelopedinaccordance"1thinternationallyrecognizedprinciplesonstandardizationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStanclarcls,GuidesandRecommendationsissuedbytheWorldTracieOrganizationTechnicalBarrierstoTracie(TBT)Committee.aDesignation:08349-21~u1_t'_INTERNATIONAi.StandardClassificationSystemforandBasisofSpecificationsforThermoplasticJoiningInterfaceMaterialsforCreationofJointsBetweenDifferentMaterialsfortheProductionofEndItemsorPartsthatareIntendedtobeDisassembledand/orReassembled1ThisstandardisissuedunderthefixeddesignationD8349;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisclassificationsystemcoversthermoplasticmaterials,usedasjoiningmaterials,forthecreationofjointsbetweensimilarordissimilarmaterials,toproducefinishedproductsorpartsthatareintendedtobedisassembledand/orreassembled.1.2Thisclassofmaterialsenablesdisconnectionofthedifferentpartsorlayersofaproductsforrefurbishing,repairandfullrecoveryandrecyclingofthejoinedmaterials,forinstanceattheendoflifeoftheproduct(s),enablingthereuseofvaluableresources,andhencereducingadverseimpactontheenvironment.1.3Thepropertiesincludedinthisclassificationsystemarethoserequiredtoidentifythematerialscovered.Itispossiblethatthereareotherrequirementsnecessarytoidentifyparticu-larcharacteristicsimportanttospecializedapplications.OnewayofspecifyingthemisbyusingthesuffixesasgiveninSection5.1.4Thisclassificationsystemandsubsequentlinecallout(specification)areintendedtoprovideameansofcallingoutplasticmaterialsusedinthefabricationofenditemsorparts.Itisnotintendedfortheselectionofmaterials.Materialselectionisbestmadebythosehavingexpertiseintheplasticfieldaftercarefulconsiderationofthedesignandtheperfor-mancerequiredofthepart,theenvironmenttowhichitwillbee...
