1、Designation:D6214/D6214M98(Reapproved 2022)Standard Test Method forDetermining the Integrity of Field Seams Used in JoiningGeomembranes by Chemical Fusion Methods1This standard is issued under the fixed designation D6214/D6214M;the number immediately following the designation indicates theyear of or
2、iginal adoption or,in the 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.Scope1.1 This test method covers an accelerated,destructive testmethod for ge
3、omembranes in a geotechnical application.1.2 This test is applicable to field-fabricated geomembranesthat are scrim reinforced or nonreinforced.1.3 This test method is applicable for field seaming pro-cesses that use a chemical fusion agent or bodied chemicalfusion agent as the seaming mechanism.1.4
4、 Subsequent decisions as to seam acceptance criteria aremadeaccordingtothesite-specificcontractplans,specification,and CQC/CQA documents.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system are not necessarily exact equ
5、ivalents;therefore,toensure conformance with the standard,each system shall beused independently of the other,and values from the twosystems shall not be combined.1.6 Hazardous MaterialsAlways consult the proper Ma-terial Safety Data Sheets for any hazardous materials used forproper ventilation and
6、protection.The use of the oven in thistest method may accelerate fume production from the testspecimen.1.7 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,a
7、nd environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.8 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
8、 Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D413 Test Methods for Rubber PropertyAdhesion to Flex-ible SubstrateD638 Test Method for Tensile Properties of PlasticsD751 Test Methods fo
9、r Coated FabricsD882 Test Method for Tensile Properties of Thin PlasticSheetingD4439 Terminology for Geosynthetics2.2 ANSI/NSF Standard:3ANSI/NSF Standard 543.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bodied chemical agent,na chemical fluid containinga portion of the parent
10、 geomembrane polymer,that dissolvesthe surface of the geomembrane to be bonded.3.1.2 bodied-chemical fusion seams,nuse of a bodiedchemical agent to dissolve the surfaces of the geomembrane forbonding.3.1.2.1 DiscussionHeat and pressure are commonly usedas part of the bodied chemical fusion process.3
11、.1.3 chemical agent,na chemical fluid that dissolves thesurface of the geomembrane to be bonded.3.1.4 chemical fusion seams,nuse of a chemical agent todissolve the surface of the geomembrane for bonding.3.1.4.1 DiscussionHeat and pressure are commonly usedas part of the chemical fusion process.3.2 F
12、or other terms,refer to Terminology D4439.4.Significance and Use4.1 SignificanceThe increased use of geomembranes asbarrier materials to restrict fluid migration from one location toanother in various applications,and the various types ofseaming methods used in joining geomembrane sheets,has1This te
13、st method is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomem-branes.Current edition approved Jan.15,2022.Published January 2022.Originallyapproved in 1997.Last previous edition approved in 2013 as D6214/D6214M 98(2013)1.D
14、OI:10.1520/D6214_D6214M-98R22.2For 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 American National St
15、andards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.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 stand
16、ardization 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.1created a need to standardize tests by which the various seamscan be compared and the quality of the seam systems can beevaluated.This test method is intended to meet such a need.4.2 UseAccelerated seam test provides information as tothe status of the field seam.Data obtained by this test me