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MSSQualityStandardforSteelCastingforValves,FlangesandFittingsandOtherPipingComponentsSP-54-RadiographicExaminationMethodStandardPracticeDevelopedandApprovedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.127ParkStreet,N.E.1999dVienna,Virginia22180(703)281-6613COPYRIGHTManufacturersStandardizationSocietyoftheValveandFittingsLicensedbyInformationHandlingServicesCOPYRIGHTManufacturersStandardizationSocietyoftheValveandFittingsLicensedbyInformationHandlingServicesMSSSTANDARDPRACTICESP-54AnMSSStandardPracticeisintendedasabasisforcommonpracticebythemanufacturer,theuser,andthegeneralpublic.TheexistenceofanMSSStandardPracticedoesnotinitselfprecludethemanufacture,sale,oruseofproductsnotconformingtotheStandardPractice.Mandatoryconformanceisestablishedonlybyreferenceinacode,specification,salescontract,orpubliclaw,asapplicable.UnlessotherwisespecificallynotedinthisMSSSP,anystandardreferredtohereinisidentifiedbythedateofissuethatwasapplicabletothereferencedstandard(s)atthedateofissueofthisMSSSP.(SeeAnnexA.)InthisStandardPracticeallnotes,annexes,tables,andfiguresareconstruedtobeessentialtotheunderstandingofthemessageofthestandard,andareconsideredpartofthetextunlessnotedas“supplemental”.Allappendicesappearinginthisdocumentareconstruedas“supplemental”.“Supplemental”informationdoesnotincludemanda-toryrequirements.U.S.customaryunitsinthisSParethestandard;themetricunitsareforreferenceonly.ISubstantivechangesinthis1999editionare“flagged”byparallelbarsasshownonthemarginsofthisparagraph.Thespecificdetailofthechangemaybedeterminedbycomparingthematerialflaggedwiththatinthepreviousedition.INon-tolerancedDimensionsinthisStandardPracticearenominal,and,unlessotherwisespecified,shallbeconsid-ered“forreferenceonly.”Anypartofthisstandardmaybequoted.Creditlinesshouldread‘extractedfromMSSSP-54,1999,withpermissionofthepublishel;theManufacturersStandardizationSociev.’ReproductionprohibitedundercopyrightconventionunlesswrittenpermissionisgrantedbytheManufacture...