ASTM_D_5073_-_21.pdf

Designation:D507321Standard Practice forDepth Measurement of Surface Water1This standard is issued under the fixed designation D5073;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice guides the user in selection of procedurescommonly used to measure depth in water bodies that are asfollows:SectionsProcedure AManual Measurement6 through 11Procedure BElectronic Sonic-Echo Sounding12 through 13Procedure CElectronic Nonacoustic Measurement14 through 15The text specifies depth measuring terminology,describesmeasurement of depth by manual and electronic equipment,outlines specific uses of electronic sounders,and describesan electronic procedure for depth measurement other thanusing sonar.1.2 The references cited and listed at the end of this practicecontain information that may help in the design of a highquality measurement program.1.3 The information provided on depth measurement isdescriptive in nature and not intended to endorse any particularitem of manufactured equipment or procedure.1.4 This practice pertains to depth measurement in quies-cent or low-velocity flow.For depth measurement related tostream gauging,see Test Method D3858.For depth measure-ments related to reservoir surveys,see Guide D4581.1.5 The values 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.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its 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.1.7 This international standard was developed in accor-dance with internationally recognized principles 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:2D1129 Terminology Relating to WaterD3858 Test Method for Open-Channel Flow Measurementof Water by Velocity-Area MethodD4410 Terminology for Fluvial SedimentD4581 Guide for Measurement of Morphologic Character-istics of Surface Water Bodies(Withdrawn 2013)33.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminologies D1129 and D4410.3.2 Definitions of Terms Specific to This Standard:3.2.1 bar-check,na method for determining depth below asurvey vessel by means of a long,narrow metal bar or beamsuspended on a marked line beneath a sounding transducer.3.2.2 bar sweep,na bar or pipes,suspended by wire orcable beneath a floating vessel,used to search for submergedsnags or obstructions hazardous to navigation.3.2.3 beam width,nthe angle in degrees made by the mainlobe of acoustical energy emitted from the radiating face of atransducer.3.2.4 bottom profile,na line trace of the bottom surfacebeneath a water body.3.2.5 sonar,na method for detecting and locating objectssubmerged in water by means of the sound waves they reflector produce.3.2.6 sound,vtto determine the depth of water(1).43.2.7 sounding line,na rope or cable used for supportinga weight while the weight is lowered below the water surfaceto determine depth.1This practice is under the jurisdiction of ASTM Committee D19 on Water andis 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 1990.Last previous edition approved in 2021 as D5073 02(2021).DOI:10.1520/D5073-21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4The boldface numbers in parentheses refer to a list of references at the end ofthis standard.Copyright ASTM International,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.13.2.8 sounding weight,na heavy object usually of lead,that may be bell-shaped,for use in still water and soft bottommaterials or torpedo shaped with stabilizing fins,for use inflowing water.3.2.9