Designation:G111−97(Reapproved2013)StandardGuideforCorrosionTestsinHighTemperatureorHighPressureEnvironment,orBoth1ThisstandardisissuedunderthefixeddesignationG111;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversprocedures,specimens,andequip-mentforconductinglaboratorycorrosiontestsonmetallicmaterialsunderconditionsofhighpressure(HP)orthecombinationofhightemperatureandhighpressure(HTHP).See3.2fordefinitionsofhighpressureandtemperature.1.2TestsconductedunderHPorHTHPbytheirnaturehavespecialrequirements.Thisguideestablishesthebasicconsid-erationsthatarenecessarywhentheseconditionsmustbeincorporatedintolaboratorycorrosiontests.1.3Theproceduresandmethodsinthisguideareapplicableforconductingmasslosscorrosion,localizedcorrosion,andelectrochemicaltestsaswellasforuseinenvironmentallyinducedcrackingteststhatneedtobeconductedunderHPorHTHPconditions.1.4Theprimarypurposeforthisguideistopromoteconsistencyofcorrosiontestresults.Furthermore,thisguidewillaidinthecomparisonofcorrosiondatabetweenlabora-toriesortestingorganizationsthatutilizedifferentequipment.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E8TestMethodsforTensionTestingofMetallicMaterialsG1PracticeforPreparing,Cleaning,andEvaluatingCorro-sionTestSpecimensG3PracticeforConventionsApplicabletoElectrochemicalMeasurementsinCorrosionTestingG5ReferenceTestMethodforMakingPotentiodynamicAnodicPolarizationMeasurementsG15TerminologyRelatingtoCorrosionandCorrosionTest...