Designation:D5413−93(Reapproved2013)StandardTestMethodsforMeasurementofWaterLevelsinOpen-WaterBodies1ThisstandardisissuedunderthefixeddesignationD5413;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverequipmentandproceduresusedinobtainingwaterlevelsofrivers,lakes,andreservoirsorotherwaterbodies.Threetypesofequipmentareavailableasfollows:TestMethodA—Nonrecordingwater-levelmeasurementdevicesTestMethodB—Recordingwater-levelmeasurementdevicesTestMethodC—Remote-interrogationwater-levelmeasurementdevices1.2Theproceduresdetailedinthesetestmethodsarewidelyusedbythoseresponsibleforinvestigationsofstreams,lakes,reservoirs,andestuaries,forexample,theU.S.AgriculturalResearchService,theU.S.ArmyCorpofEngineers,andtheU.S.GeologicalSurvey.2ThereferencedISOstandardalsofurnishesusefulinformation.1.3Itistheresponsibilityoftheuserofthesetestmethodstodeterminetheacceptabilityofaspecificdeviceorproceduretomeetoperationalrequirements.Compatibilitybetweensensors,recorders,retrievalequipment,andoperationalsys-temsisnecessary,anddatarequirementsandenvironmentaloperatingconditionsmustbeconsideredinequipmentselec-tion.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D1129TerminologyRelatingtoWaterD1941TestMethodforOpenChannelFlowMeasurementofWaterwiththeParshallFlumeD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD5242TestMethodforOpen-ChannelFlowMeasurementofWaterwithThin...
