Designation:D5814−18StandardPracticeforDeterminationofContaminationinRecycledPoly(EthyleneTerephthalate)(PET)FlakesandChipsUsingaPlaqueTest1ThisstandardisissuedunderthefixeddesignationD5814;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoversanindicationofthequalityofrecycledtransparentpoly(ethyleneterephthalate)byexamina-tionofawaferorplaqueformedbymeltingarepresentativesampleandquenchingittopreventcrystallization.1.2Specificcontaminantsandimpuritiessuchasaluminumparticles,dirtparticles,paper,andfibersareidentifiedinthetransparentwafer.1.3Theoverallcoloroftheplaqueisindicativeofoxidiz-ablecontaminantssuchasethylene-vinylacetate(EVA)glueresidueandthenumberofbubblespresentintheplaquegivesanindicationofthemoisturecontentofthesample.1.4Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.NOTE1—ThereisnoknownISOequivalenttothisstandard.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsIEEE/ASTMSI10StandardforUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem3.Terminology3.1Definitions—TheterminologyusedinthispracticeisinaccordancewithTerminologyD16...
