Designation:D2115−17StandardPracticeforOvenHeatStabilityofPoly(VinylChloride)Compositions1ThisstandardisissuedunderthefixeddesignationD2115;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thispracticelistsproceduresfordeterminingtherela-tivethermalstabilityofsheetormoldedpoly(vinylchloride)compoundsasindicatedbydiscolorationduetoexposuretoanelevatedtemperatureatcontrolledovenconditions.1.2Aspecimenpreparationtechniqueusingatwo-rollmillisprovidedforcompositionsthatarenotinmoldedorsheetedform.1.3Thispracticeisnotintendedforuseinpurchasingspecificationsbecausetheconditionsofprocessingplasticcompoundsvarywidely,andthedegreeofcorrelationofdataobtainedbythispracticetoprocessexposurehasnotbeendetermined.However,despitethislimitation,thispracticedoesyielddataofvalueinjudgingthecomparativeservicequalityofpoly(vinylchloride)compositions.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesaregivenforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,healthandenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.NOTE1—Thisstandardissimilarincontent,butnottechnicallyequivalenttoISO305–1990.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D883TerminologyRelatingtoPlasticsD1600TerminologyforAbbreviatedTermsRelatingtoPlas-tics2.2ISOStandar...
