Designation:D5204−13StandardClassificationSystemforPolyamide-Imide(PAI)MoldingandExtrusionMaterials1ThisstandardisissuedunderthefixeddesignationD5204;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisclassificationsystemcoverspolyamide-imidema-terialssuitableforinjectionmoldingandextrusion.1.2Thepropertiesincludedinthisclassificationsystemarethoserequiredtoidentifythecompositionscovered.Itispossiblethatotherrequirementsarenecessarytoidentifyparticularcharacteristicsimportanttospecializedapplications.TheuseofsuffixesasshowninSection5isonewayofspecifyingtheserequirements.1.3Thisstandardallowsfortheuseofrecycledmaterialsprovidedthatspecificationrequirementsbaseduponthisclas-sificationsystemaremet.1.4Thisclassificationsystemandsubsequentlinecall-out(specification)isintendedtobeameansofcallingoutplasticsmaterialsusedinthefabricationofenditemsorparts.Itisnotintendedfortheselectionofmaterials.Materialselectionneedstobemadebythosehavingexpertiseintheplasticsfieldaftercarefulconsiderationofthedesignandtheperformancerequiredofthepart,theenvironmenttowhichitwillbeexposed,thefabricationprocesstobeemployed,theinherentpropertiesofthematerialotherthanthosecoveredbythisclassification,andtheeconomics.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.(Reportingininch-poundunitsisacceptable.)1.6Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section11,ofthisclassificationsystem:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.NOTE1—ThereisnoknownISOequivalenttothisstandard.2.ReferencedD...
