Designation:E1220−16StandardPracticeforVisiblePenetrantTestingUsingSolvent-RemovableProcess1ThisstandardisissuedunderthefixeddesignationE1220;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispractice2coversproceduresforvisiblepenetrantexaminationutilizingthesolvent-removableprocess.Itisanondestructivetestingmethodfordetectingdiscontinuitiesthatareopentothesurfacesuchascracks,seams,laps,coldshuts,laminations,isolatedporosity,throughleaks,orlackoffusionandisapplicabletoin-process,final,andmaintenanceexami-nation.Itcanbeeffectivelyusedintheexaminationofnonporous,metallicmaterials,bothferrousandnonferrous,andofnonmetallicmaterialssuchasglazedorfullydensifiedceramicsandcertainnonporousplasticsandglass.1.2Thispracticealsoprovidesareference:1.2.1Bywhichavisiblepenetrantexaminationmethodusingthesolvent-removableprocessrecommendedorrequiredbyindividualorganizationscanbereviewedtoascertainitsapplicabilityandcompleteness.1.2.2Foruseinthepreparationofprocessspecificationsdealingwiththevisible,solvent-removableliquidpenetrantexaminationofmaterialsandparts.Agreementbythepur-chaserandthemanufacturerregardingspecifictechniquesisstronglyrecommended.1.2.3Foruseintheorganizationofthefacilitiesandpersonnelconcernedwiththeliquidpenetrantexamination.1.3Thispracticedoesnotindicateorsuggeststandardsforevaluationoftheindicationsobtained.Itshouldbenoted,however,thatafterindicationshavebeenproduced,theymustbeinterpretedorclassifiedandthenevaluated.Forthispurposetheremustbeaseparatecode,specification,oraspecificagreementtodefinethetype,size,location,anddirectionofindicationsconsideredacceptable,andthoseconsideredunac-ceptable.1.4Allareasofthispracticemaybeopentoagreementbetweenthecognizantengineeringorganizationandthesupplier,orspecificdirectionfromthecognizantengineering...
