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ApprovalStandardforIndicatorPostsClassNumber1110November1990(ReplacesJuly1975)©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.TABLEOFCONTENTSIINTRODUCTION.......................................................................................................................................................................11.1Purpose..............................................................................................................................................................................11.2Scope.................................................................................................................................................................................11.3BasisforFMApproval.....................................................................................................................................................11.4BasisforContinuedApproval..........................................................................................................................................11.5BasisforRequirements.....................................................................................................................................................11.6EffectiveDate....................................................................................................................................................................21.7SystemofUnits.................................................................................................................................................................2IIGENERALINFORMATION...................................................................................................................................................2IIIGENERALREQUIREMENTS..............................................................................................................................................23.1Materials............................................................................................................................................................................23.2Barrel.................................................................................................................................................................................33.3PostCap..............................................................................................................................................................................33.4OperatingStem..................................................................................................................................................................33.5TargetMechanism.............................................................................................................................................................43.6ExtensionRod...................................................................................................................................................................43.7WrenchorHandwheel......................................................................................................................................................43.8LockingandSealing.........................................................................................................................................................53.9Markings............................................................................................................................................................................53.10Drawings/Plans/SpecificationsRequired.........................................................................................................................6IVPERFORMANCEREQUIREMENTS.........................................................