Designation:D6265−15StandardPracticeforSeparationofContaminantsinPolymersUsinganExtruderFilterTest1ThisstandardisissuedunderthefixeddesignationD6265;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoversameanstoseparatetheunmoltenparticles,gels,andimpuritiescontaminatingapolymersample.Theproceduremaybeusedtoremovegelsandincompatiblematerialsthatmaycauseimperfectionsinthefinalextrudedproduct.Underpressure,mostgelswillbreakupordeformandpassthroughawiremeshfilter,howeverhighmolecularweightgelsmaynotbreakupordeform.1.2Materialsisolatedonawiremeshfiltercanbeidentifiedbyspectroscopicorotheranalyticalmeans.NOTE1—Althoughnotpresentedasaquantitativemethod,theproce-durepresentedinthispracticemaybeusedtoprovidequantitativeresultsatthediscretionoftheuser.Theuserassumestheresponsibilitytoverifythereproducibilityofquantitativeresults.Detectionlimitdependsonthemeshsizeofthefilterscreen,buttheprocedureisgenerallyapplicabletotheseparationofimmisciblecontaminantspresentatconcentrationsgreaterthan0.1%.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.4Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardsstatements,seeSection8.NOTE2—ThereisnoknownISOequivalenttothisstandard.2.ReferencedDocuments2.1ASTMStandards:2D1238TestMethodforMeltFlowRatesofThermoplasticsbyExtrusionPlastometerD1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsD7209GuideforWasteReduction,ResourceRecovery,andUseofRecycledPolymericMaterialsandProducts(With-drawn2015)3IEEE/ASTMSI-10PracticeforUseoftheInternationalSystemofUnits(SI)(theModernizedMetricSystem)3.Terminology3.1Theterminolo...
