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IMSSSP-70-1998CastIronGateValvesFlangedandThreadedEndsStandardPracticeDevelopedandApprovedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.127ParkStreet,NEVienna,Virginia22180(703)281-6613COPYRIGHTManufacturersStandardizationSocietyoftheValveandFittingsLicensedbyInformationHandlingServicesCOPYRIGHTManufacturersStandardizationSocietyoftheValveandFittingsLicensedbyInformationHandlingServicesSTD*MSSSP-70-ENGLL778H5770b40050LOb8bllOMSSSTANDARDPRACTICESP-70AnMSSStandardPracticeisintendedasabasisforcommonpracticebythemanufacturer,theuser,andthegeneralpublic.TheexistenceofanMSSStandardPracticedoesnotinitselfprecludethemanufacture,sale,oruseofproductsnotconformingtotheStandardPractice.Mandatoryconformanceisestablishedonlybyreferenceinacode,specification,salescontract,orpubliclaw,asapplicable.UnlessotherwisespecificallynotedinthisMSSSP,anystandardreferredtohereinisidentifiedbythedateofissuethatwasapplicabletothereferencedstandard(s)atthedateofissueofthisMSSSP.SeeAnnexC.InthisStandardPracticednotes,annexes,andfiguresareconstruedtobeessentialtotheunderstandingofthemessageofthestandard,andareconsideredpartofthetextunlessnotedas‘supplemental.’Allfootnotesappearinginthisdocumentareconstruedas‘supplemental‘wheretheirinformationdoesnotmodifythetexttowhichtheyrefer.U.S.customaryunitsinthisSParethestandard;themetricunitsareforreferenceonly.ISubstantivechangesinthis1998editionare“flagged’’byparallelbarsasshownonthemarginsofthisparagraph.Thespecificdetailofthechangemaybedeterminedbycomparingthematerialflagedwiththatinthepreviousedition.IAnypartofthisstandmdmaybequoted.Creditlinesshouldread‘ExtractedpornMSSSP-70,1998,withpenniwwnofthepublisher,theManufacturersStandardizationSociety.’ReproductionprohibitedundercopyrightconventionunlesswrittenpermìwwnisgrantedbytheManufacturersStandardizationSocietyoftheVaheandFittingsInhtry,Inc.OrigbUyApproved1970Copyright8,1984byManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.printedinU.S.A.iCOP...