1、Designation:D475911(Reapproved 2018)1Standard Practice forDetermining the Specification Conformance ofGeosynthetics1This standard is issued under the fixed designation D4759;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、 last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTE5.2 was editorially corrected in January 2021.This standard has been approved for use by agencies of the U.S.Department of Defen
3、se.1.Scope1.1 This practice covers a procedure for determining theconformance of geosynthetic properties to standard specifica-tions.1.2 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 establis
4、h appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for t
5、heDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4354 Practice for Sampling of Geosynthetics and RolledErosion Control Products(RECPs)for TestingD4439 Termin
6、ology for GeosyntheticsD4533 Test Method for Trapezoid Tearing Strength of Geo-textilesD7273 Guide forAcceptance Testing Requirements for Geo-nets and Geonet Drainage Geocomposites3.Terminology3.1 For general definitions used in this document,refer toTerminology D4439.3.2 Definitions of Terms Specif
7、ic to This Standard:3.2.1 test result,na value obtained by a given test method,expressed as a single determination or a specified combinationof a number of determinations.4.Significance and Use4.1 This practice provides a means by which the purchasercan determine the conformance of geosynthetic prop
8、erties asapplied to the acceptance or rejection of a material in regardsto a material specification.4.2 This practice has been developed with strong emphasison practicality and the realization that all geosynthetics aresubjected to a vigorous quality control program prior toshipping.NOTE1It is sugge
9、sted that the user obtain the mean,standarddeviation,and/or the coefficient of variation for given physical/mechanicalproperties of a product directly from the manufacturer.If this data isunavailable,it is suggested that users of this practice begin to accumulatedata that can be used to estimate pro
10、duct averages and standard deviationsfor each product.NOTE2The risk to the purchaser of buying out-of-specificationmaterials is minimal when conformance requirements are detailed in thepurchase specification and adequate conformance testing is performed.Itis the producers responsibility to perform t
11、horough quality control testingfor all properties requiring certification.The producers risk of rejection isminimal with the performance of this thorough quality control testing.5.Summary of the Test Procedure5.1 Procedure AThis procedure determines the confor-mance of geosynthetic materials propert
12、ies to acceptable speci-fications values.NOTE3Conformance testing is done by the purchaser or designatedperson/organization.It is usually done as the geosynthetics are brought tothe project site and to justify the payment of the billing(Practice D4354).Typically,testing is performed on the final pro
13、duct and no components toproduce or assemble the final geosynthetic material need to be confor-mance tested.5.2 Procedure BThis procedure determines the confor-mance of geocomposite geosynthetic material properties to aset of acceptable specification values.Typically,multipleindividual components ne
14、ed to be tested together with the final1This practice is under the jurisdiction of ASTM Committee D35 on Geosyn-theticsand is the direct responsibility of Subcommittee D35.01 on MechanicalProperties.Current edition approved Feb.1,2018.Published February 2018.Originallyapproved in 1988.Last previous
15、edition approved in 2011 as D4759 11.DOI:10.1520/D4759-11R18E01.2For 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.Co
16、pyright 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.1geocomposite product to show conformance with the accept-able material specific
