ASTM_D_6141_-_18_2022.pdf

Designation:D614118(Reapproved 2022)Standard Guide forScreening Clay Portion and Index Flux of Geosynthetic ClayLiner(GCL)for Chemical Compatibility to Liquids1This standard is issued under the fixed designation D6141;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 guide covers procedures and test methods that canbe used in the evaluation of the ability of the clay portion of ageosynthetic clay liner to resist change due to exposure toliquids.These liquids may come from a site,or be generated ina laboratory from a site-specific soil.1.2 The scope of this guide is limited to short-term screen-ing and is not intended to replace evaluation procedures thatmeasure a performance property such as EPA 9100,TestMethod D6766,or other suitable ASTM standards as theybecome available.This guide does not address potentialadverse effects of wet-dry cycling.1.3 This guide applies to the clay component of a GCL.Theswell index and fluid loss tests referenced in Section 8 may notbe applicable to clay with polymer or other chemical treatment.However,the flux tests referenced in Section 9 are applicableto clay with polymer or other chemical treatment.It isacknowledged that some use the swell index or fluid lossprocedure,or both,on clay with polymer or other chemicaltreatment.However,such use of the standard would beconsidered a modification of the procedure and must bereported as such.The synthetic carrier components are coveredindependently as described in Practice D5322.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 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.1.6 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:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD4439 Terminology for GeosyntheticsD5322 Practice for Laboratory Immersion Procedures forEvaluating the Chemical Resistance of Geosynthetics toLiquidsD5887/D5887M Test Method for Measurement of IndexFlux Through Saturated Geosynthetic Clay Liner Speci-mens Using a Flexible Wall PermeameterD5890 Test Method for Swell Index of Clay Mineral Com-ponent of Geosynthetic Clay LinersD5891/D5891M Test Method for Fluid Loss of Clay Com-ponent of Geosynthetic Clay LinersD6072/D6072M Practice for Obtaining Samples of Geosyn-thetic Clay LinersD6766 Test Method for Evaluation of Hydraulic Propertiesof Geosynthetic Clay Liners Permeated with PotentiallyIncompatible Aqueous Solutions2.2 EPA Document:3EPA Test Method 9100 Saturated Hydraulic Conductivity,Saturated Leachate Conductivity,and Intrinsic Permeabil-ity3.Terminology3.1 Definitions:3.1.1 geosynthetic clay liner(GCL),na manufacturedhydraulic barrier consisting of clay bonded to a layer or layersof geosynthetics.3.2 For definitions of other terms used in this guide,refer toTerminologies D4439 and D653.1This guide is under the jurisdiction ofASTM Committee D35 on Geosyntheticsand is the direct responsibility of Subcommittee D35.04 on Geosynthetic ClayLiners.Current edition approved Oct.1,2022.Published October 2022.Originallyapproved in 1997.Last previous edition approved in 2018 as D6141 18.DOI:10.1520/D6141-18R22.2For 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.3Available from United States Environmental ProtectionAgency(EPA),WilliamJefferson Clinton Bldg.,1200 Pennsylvania Ave.,NW,Washington,DC 20004,http:/www.epa.gov.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.13.3 Definitions of Terms Specific to This Standard:3.3.1 test liquid,nwithin this guide,a liquid either sup-plied to,or obtained by the testing laboratory,or generated bythe testing laboratory through prolonged contact of a reage