Designation:C868−02(Reapproved2012)StandardTestMethodforChemicalResistanceofProtectiveLinings1ThisstandardisissuedunderthefixeddesignationC868;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaprocedureforevaluatingthechemicalresistanceofapolymer-basedprotectivelininginimmersionservice.Themethodcloselyapproximatestheserviceconditions,includingthetemperaturedifferentialbe-tweentheexternalandinternalsurfacesoftheequipment,whichmayacceleratepermeationoftheliningbyacorrosivemedia.1.2Thistestmaybeusedtosimulateactualfielduseconditionsinsofarasaqualitativeevaluationoftheliningsystemafterapredeterminedperiodofexposure.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A36/A36MSpecificationforCarbonStructuralSteelA285/A285MSpecificationforPressureVesselPlates,Car-bonSteel,Low-andIntermediate-TensileStrengthC267TestMethodsforChemicalResistanceofMortars,Grouts,andMonolithicSurfacingsandPolymerConcretesD471TestMethodforRubberProperty—EffectofLiquidsD714TestMethodforEvaluatingDegreeofBlisteringofPaintsD785TestMethodforRockwellHardnessofPlasticsandElectricalInsulatingMaterialsD1474TestMethodsforIndentationHardnessofOrganicCoatingsD2583TestMethodforIndentationHardnessofRigidPlas-ticsbyMeansofaBarcolImpressorD3363TestMethodforFilmHardnessbyPencilTestD4417TestMethodsforFieldMeasurementofSurfaceProfileofBlastCleanedSteelD4541TestMethodfor...
