Designation:D1712−09(Reapproved2020)StandardPracticeforResistanceofPlasticstoSulfideStaining1ThisstandardisissuedunderthefixeddesignationD1712;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthedeterminationoftheresistanceofplasticstostaininginthepresenceofsulfides.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionstatements,seeSection6.NOTE1—ThereisnoknownISOequivalenttothisstandard.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD883TerminologyRelatingtoPlastics3.Terminology3.1Definitions—Fordefinitionsoftermsusedinthispractice,refertoTerminologyD883.4.SignificanceandUse4.1Plasticcompositionscontainingsaltsoflead,cadmium,copper,antimony,andcertainothermetals(asstabilizers,pigments,driers,orfillers)maystainduetotheformationofametallicsulfidewhenincontactwithexternalmaterialsthatcontainsulfide.Theexternalsulfidesourcemaybeliquid,solid,orgas.Examplesofmaterialsthatmaycausesulfidestainsarerubber,industrialfumes,foods,kraftpaper,etc.Thispracticeprovidesameansofestimatingtherelativesuscepti-bilityofplasticcompositiontosulfidestaining.5.Reagent5.1HydrogenSulfideSolution—Afreshlypreparedsatu-ratedsolutionofhydrogensulfide(Caution,seeSectio...
