Designation:E1312−09(Reapproved2013)´1StandardPracticeforElectromagnetic(EddyCurrent)ExaminationofFerromagneticCylindricalBarProductAbovetheCurieTemperature1ThisstandardisissuedunderthefixeddesignationE1312;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—ChangesweremadeeditoriallyinJuly2013.1.Scope*1.1Thispracticecoversproceduresforeddycurrentexami-nationofhotferromagneticbarsabovetheCurietemperaturewheretheproductisessentiallynonmagnetic,butbelow2100°F(1149°C).1.2Thispracticeisintendedforuseonbarproductshavingdiametersof1⁄2in.(12.7mm)to8in.(203mm)atlinearthroughputspeedsupto1200ft/min(366m/min).Largerorsmallerdiametersmaybeexaminedbyagreementbetweentheusingparties.1.3Thepurposeofthispracticeistoprovideaprocedureforin-lineeddycurrentexaminationofbarsduringprocessingforthedetectionofmajororgrosssurfacediscontinuities.1.3.1Thetypesofdiscontinuitiescapableofbeingdetectedarecommonlyreferredtoas:slivers,laps,seams,roll-ins(scale,dross,andsoforth),andmechanicaldamagesuchasscratches,scores,orindentations.1.4Thispracticedoesnotestablishacceptancecriteria.Theymustbespecifiedbyagreementbetweentheusingparties.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thispracticedoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthispracticetoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E543SpecificationforAgenciesPerformingNondestructiveTestingE1316TerminologyforNondestructiveExaminations2.2OtherDocuments:SNT-TC-1ARecommendedPracticeforPersonnelQualifi-cationandCertificationi...
