Designation:D4349−10ClassificationSystemandBasisforSpecificationforPolyphenyleneEther(PPE)Materials1ThisstandardisissuedunderthefixeddesignationD4349;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisclassificationsystemcoversthebasicpolymersandcopolymersknownaspolyphenyleneethersandpolyphenyleneoxides,aswellasfilled,modified,andreinforcedversions.RecycledmaterialsareincludedinthisstandardasClass5ofTablePPE.NOTE1—Additiontothenaturalpolymerorcopolymerofpigments,colorants,orotheradditivescancausethefinalcompositiontonolongermeettherequirementsspecifiedforthenaturalpolymerorcopolymer.NOTE2—ThepreferredabbreviationforpolyphenyleneetherisPPE,asnotedinTerminologyD1600.1.2Thisclassificationsystemandsubsequentlinecallout(specification)areintendedtoprovideameansofcallingoutplasticmaterialsusedinthefabricationofenditemsorparts.Itisnotintendedfortheselectionofmaterials.Materialselectionshouldbemadebythosehavingexpertiseintheplasticfieldaftercarefulconsiderationofthedesignandtheperformancerequiredofthepart,theenvironmenttowhichitwillbeexposed,thefabricationprocesstobeemployed,thecostsinvolved,andtheinherentpropertiesofthematerialotherthanthosecoveredbythisstandard.1.3Theremaybeotherrequirementsnecessarytoidentifyparticularcharacteristicsimportanttospecificapplications.ThesearetobespecifiedbyusingthesuffixesdescribedinSection5.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.NOTE3—ThereisnoknownISOequivalenttothisstandard.2.ReferencedDocuments2.1ASTMStandards:2D256TestMethodsforDeterminingtheIzodPendulumImpactResistanceofPlasticsD618PracticeforConditioningPlasticsforTestingD638TestMethodforTensilePropertiesofPlasticsD648TestMethodforDeflectionTemperatureofPlasticsUnderFlexuralLoadintheEdgewisePositionD790TestMethodsforFlexuralPropertiesofUnreinfo...
