Designation:G60−01(Reapproved2013)StandardPracticeforConductingCyclicHumidityExposures1ThisstandardisissuedunderthefixeddesignationG60;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversproceduresforconductingcyclichumidityexposureswithacorrosivedip.2Itsetsforththeconditionsrequiredincyclichumiditytesting.1.2Thispracticedoesnotprescribethetypeofexposurespecimenorexposureperiodsnortheinterpretationtobegiventotheresults.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D1193SpecificationforReagentWaterG1PracticeforPreparing,Cleaning,andEvaluatingCorro-sionTestSpecimens3.SignificanceandUse3.1Theproceduredescribedisusedtoobservethebehaviorofsteelsunderexposureconditionsthatretardtheformationofaprotectivetypeofrust.Itisalsousedtoevaluatesealcoatoninsulation.3.2Thispracticeshouldnotbeusedtoranksteelsthatformaprotectivetypeofrustunderatmosphericexposurecondi-tions.4.Apparatus4.1Theapparatusrequiredforcyclichumidityexposuresconsistsofatestchamber,provisionsforheatingthechamber,ahumidifyingtower,adryingtrain,adipmechanism,provi-sionsforintroducinganddrainingthesolution,asupplyofcompressedair,specimensupports,andnecessarymeansofcontrol.4.2Thesizeanddetailedconstructionoftheapparatusareoptional,providedtheconditionsobtainedmeettherequire-mentsofthispractice.4.3AschematicdiagramoftheapparatusisshowninFig.1.4.4Theapparatusshouldbecapableofprovidingan8-hhumiditycyclethreetimesperday,asshowninFig.2,andadipcycleo...
