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ApprovalStandardforFirePumpFlowmeterSystemsClassNumber1046January1987©2002FMGlobalTechnologiesLLC.Allrightsreserved.ForewordFMApprovalsareintendedtoverifythattheproductsandservicesdescribedwillmeetstatedconditionsofperformance,safetyandqualityusefultotheendsofpropertyconservation.ThepurposeofFMApprovalStandardsistopresentthecriteriaforFMApprovalofvarioustypesofproductsandservices,asguidanceforFMApprovalspersonnel,manufacturers,usersandauthoritieshavingjurisdiction.ProductssubmittedforApprovalshalldemonstratethattheymeettheintentoftheApprovalStandard,andthatqualitycontrolinmanufacturingand/orapplicationsshallensureaconsistentlyuniformandreliableproductorservice.FMApprovalStandardsstrivetobeperformance-orientedandtofacilitatetechnologicaldevelopment.Forexaminingequipment,materialsandservices,FMApprovalStandards:a)mustbeusefultotheendsofpropertyconservationbypreventing,limitingornotcausingdamageundertheconditionsstatedbytheApprovallisting;andb)mustbereadilyidentifiable.ContinuanceofApprovalandListingdependsoncompliancewiththeApprovalagreement,satisfactoryperformanceinthefield,onsuccessfulre-examinationsofequipment,materials,andservicesasappropriate,andonperiodicfollow-upauditsofthemanufacturingfacilityorservice/application.FMGlobalTechnologiesLLCreservestherightinitssolejudgementtochangeorreviseitsstandards,criteria,methods,orprocedures.TABLEOFCONTENTSI.INTRODUCTION......................................................................................................................................................................11.1Purpose................................................................................................................................................................................11.2Scope.................................................................................................................................................................................11.3BasisforFMApproval.....................................................................................................................................................11.4BasisforContinuedApproval..........................................................................................................................................11.5Requirements......................................................................................................................................................................11.6EffectiveDate....................................................................................................................................................................21.7SystemofUnits.................................................................................................................................................................2II.GENERALINFORMATION..................................................................................................................................................22.1ProductInformation..........................................................................................................................................................2III.GLOSSARY.............................................................................................................................................................................2IV.GENERALREQUIREMENTS(OTHERTHANPERFORMANCEREQUIREMENTS)...........................................34.1MinimumMeterSize........................................................................................................................................................34.2FlowMeasurementDevice...............................................................................................................................................44.3Markings.............................................................................................................................................................................44.4Instructions........................................................................................................................................................................44.5PhysicalorStructuralFeatures.........................................................................................................................................44.6Drawings/Plans/SpecificationsRequired..........................................................................................................................44.7OtherRequirements...........................................................................................................................................................5V.PERFORMANCEREQUIREMENTS...................................................................................................................................55.1OperationandAccuracy....................................................................................................................................................55.2HydrostaticStreng