1、Designation:D541321Standard Test Methods forMeasurement of Water Levels in Open-Water Bodies1This standard is issued under the fixed designation D5413;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、 in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover equipment and proceduresused in obtaining water levels of rivers,lakes,and reservoirs orother water bodies.Three types o
3、f equipment are available asfollows:Test Method ANonrecording water-level measurement devicesTest Method BRecording water-level measurement devicesTest Method CRemote-interrogation water-level measurement devices1.2 The procedures detailed in these test methods are widelyused by those responsible fo
4、r investigations of streams,lakes,reservoirs,and estuaries,for example,the U.S.AgriculturalResearch Service,the U.S.Army Corp of Engineers,and theU.S.Geological Survey.2The referenced ISO standard alsofurnishes useful information.1.3 It is the responsibility of the user of these test methodsto deter
5、mine the acceptability of a specific device or procedureto meet operational requirements.Compatibility betweensensors,recorders,retrieval equipment,and operational sys-tems is necessary,and data requirements and environmentaloperating conditions must be considered in equipment selec-tion.1.4 The val
6、ues stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with it
7、s use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principl
8、es on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D1129 Terminology Relating to WaterD194
9、1 Test Method for Open Channel Flow Measurementof Water with the Parshall FlumeD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD5242 Test Method for Open-Channel Flow Measurementof Water with Thin-Plate Weirs2.2 ISO Standard:4ISO 4373 Measure
10、ment of Liquid Flow in Open ChannelsWater Level Measuring Devices3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129.3.2 Definitions of Terms Specific to This Standard:3.2.1 elevation,nthe vertical distance from a datum to apoint.3.2.2 datum,na
11、 level plane that represents a zero or somedefined elevation.3.2.3 gauge,na generic term that includes water levelmeasuring devices.3.2.4 gauge datum,na datum whose surface is at the zeroelevation of all the gauges at a gauging station;this datum isoften at a known elevation referenced to National G
12、eodeticVertical Datum of 1929(NGVD).3.2.5 gauge height,nthe height of a water surface abovean established or arbitrary datum at a particular gaugingstation;also termed stage.3.2.6 gauging station,na particular site on a stream,canal,lake,or reservoir where systematic observations ofhydrologic data a
13、re obtained.1These test methods are under the jurisdiction of ASTM Committee D19 onWater and is the direct responsibility of Subcommittee D19.07 on Sediments,Geomorphology,and Open-Channel Flow.Current edition approved Nov.1,2021.Published January 2022.Originallyapproved in 1993.Last previous editio
14、n approved in 2013 as D5413 93(2013).DOI:10.1520/D5413-21.2Sauer,V.B.,and Turnipseed,D.P.,“Stage Measurement at Gauging Stations,”Techniques of Water Resources Investigations,Book 3,Chapter A-7,U.S.Geologi-cal Survey,2010.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact A
15、STM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM Internat
16、ional,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.13.2.7 National Geodetic Vertical Datum of 1929(NGVD),na datum prior to 1973 known as mean sea level;
