1、Designation:D7351/D7351M21Standard Test Method forDetermination of Sediment Retention Device(SRD)Effectiveness in Sheet Flow Applications1This standard is issued under the fixed designation D7351/D7351M;the number immediately following the designation indicates theyear of original adoption or,in the
2、 case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method establishes the guidelines,require-ments and procedures for evaluating the
3、ability of SedimentRetention Devices(SRDs)to retain sediment when exposed tosediment-laden water“sheet”flows.1.2 This test method is applicable to the use of an SRD as avertical permeable interceptor designed to remove suspendedsoil from overland,nonconcentrated water flow.The functionof an SRD is t
4、o trap and allow settlement of soil particles fromsediment laden water.The purpose is to reduce the transport oferoded soil from a disturbed site by water runoff.1.3 The test method presented herein is intended to indicaterepresentative performance and is not necessarily adequate forall purposes in
5、view of the wide variety of possible sedimentsand performance objectives.1.4 UnitsThe values stated in either SI units or inch-pound units given in brackets are to be regarded separately asstandard.Only SI units are used in equations and appendixes.The values stated in each system may not be exact e
6、quivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with the standard.Reporting of test results in unitsother than SI shall not be regarded as nonconformance withthis standard.1.5 All observed and calculated va
7、lues shall conform to theguidelines for significant digits and rounding established inPractice D6026.1.5.1 The procedures used to specify how data are collected/recorded and calculated in this standard are regarded as theindustry standard.In addition,they are representative of thesignificant digits
8、that should generally be retained.The proce-dures used do not consider material variation,purpose forobtaining the data,special purpose studies,or any consider-ation for the users objectives;and it is common practice toincrease or reduce significant digits of reported data to com-mensurate with thes
9、e considerations.It is beyond the scope ofthis standard to consider significant digits used in analysismethods for engineering design.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 establi
10、sh 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
11、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:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD698 Test Methods for Laboratory Compaction Charac
12、ter-istics of Soil Using Standard Effort(12,400 ft-lbf/ft3(600kN-m/m3)D3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4318 Test Methods for Liquid Limit,Plastic Limit,andPlasticity Index of SoilsD
13、4491/D4491M Test Methods for Water Permeability ofGeotextiles by PermittivityD4632/D4632M Test Method for Grab Breaking Load andElongation of GeotextilesD4751 Test Methods for Determining Apparent OpeningSize of a GeotextileD4753 Guide for Evaluating,Selecting,and Specifying Bal-ances and Standard M
14、asses for Use in Soil,Rock,andConstruction Materials Testing1This test method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.25 on Erosion andSediment Control Technology.Current edition approved Aug.15,2021.Published August 2021.Or
15、iginallyapproved in 2007.Last previous edition approved in 2019 as D7351 19.DOI:10.1520/D7351_D7351M-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 Doc
16、ument Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright 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 Barrier
