Designation:F483−09(Reapproved2014)StandardPracticeforTotalImmersionCorrosionTestforAircraftMaintenanceChemicals1ThisstandardisissuedunderthefixeddesignationF483;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thispracticecoversthedeterminationofthecorrosive-nessofaircraftmaintenancechemicalsonaircraftmetalswithtimeunderconditionsoftotalimmersionbyacombinationofweightchangemeasurementsandvisualqualitativedetermina-tionofchange.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D235SpecificationforMineralSpirits(PetroleumSpirits)(HydrocarbonDryCleaningSolvent)D329SpecificationforAcetoneD1193SpecificationforReagentWaterE2251SpecificationforLiquid-in-GlassASTMThermom-eterswithLow-HazardPrecisionLiquids3.SignificanceandUse3.1Manyaircraftmaintenancechemicalsareusedoncom-ponentsandstructureswhichwouldbeadverselyaffectedbyexcessivedimensionalchange.Thispracticescreensthesechemicalstoensurecompliancewithspecifiedweightchangecriteria.4.Apparatus4.1Wide-MouthSealableGlassJarorStopperedFlaskofSuitableSize—Theglassjarorflaskshouldbesochosensothatthespecimenswillremainfullyimmersedinaverticalpositionduringtestingandtheratioofareaofimmersedmetaltovolumeofsolutionwillbeinaccordancewith8.1.4.1.1Warning—Someaircraftmaintenancechemicalswhenheatedhavehighvaporpressuresormayproducegasesduringtesting.Suitableprecautionsshouldbetakentopreventthecontainingvesselfromexplodingor...
