Designation:G33−99(Reapproved2015)StandardPracticeforRecordingDatafromAtmosphericCorrosionTestsofMetallic-CoatedSteelSpecimens1ThisstandardisissuedunderthefixeddesignationG33;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversaprocedureforrecordingdataofatmosphericcorrosiontestsofmetallic-coatedsteelspecimens.Itsobjectiveistheassuranceof(1)completeidentificationofmaterialsbeforetesting,(2)objectivereportingofmaterialappearanceduringvisualinspections,and(3)adequatephotographic,micrographic,andchemicallaboratoryexamina-tionsatspecificstagesofdeterioration,andattheendofthetests.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A90/A90MTestMethodforWeight[Mass]ofCoatingonIronandSteelArticleswithZincorZinc-AlloyCoatingsA428/A428MTestMethodforWeight[Mass]ofCoatingonAluminum-CoatedIronorSteelArticlesE376PracticeforMeasuringCoatingThicknessbyMagnetic-FieldorEddy-Current(Electromagnetic)Test-ingMethodsG46GuideforExaminationandEvaluationofPittingCor-rosion3.SignificanceandUse3.1Useofthispracticewillmaximizethebenefitstobegainedfromatmospherictestingofmetallic-coatedsteel.Itwillalsoaidincomparingresultsfromonelocationtoanotherwheresimilartestshavebeenconducted.4.DatatobeRecordedBeforeTesting4.1MaterialCharacteristics:4.1.1CoatingandBasisMetal:4.1.1.1Typeofcoating(zinc,aluminum,nickel-chromium,andsoforth).4.1.1.2Methodofapplication(hot-dip,electroplated,electroless,mechanicalplated,andsoforth),(1)Areacoated(ifnot100%ofsurface),(2)Pre-treatment(basismetal:flux,sand-blast,andsoforth),and(3)Post-treatment(heating,sealing...
