1、Designation:D6214/D6214M98(Reapproved 2013)1Standard 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 o
2、riginal 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.1NOTEUnits information was editorially corrected in June 2013.1.Scope1.1 This
3、test method covers an accelerated,destructive testmethod for geomembranes in a geotechnical application.1.2 This test is applicable to field fabricated geomembranesthat are scrim reinforced or non reinforced.1.3 This test method is applicable for field seaming pro-cesses that use a chemical fusion a
4、gent or bodied chemicalfusion agent,as the seaming mechanism.1.4 Subsequent decisions as to seam acceptance criteria aremade according to the site-specific contract plans,specificationand CQC/CQA documents.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as s
5、tandard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.6 Hazardous MaterialsAlways consult the proper Ma-terial Safety Data Sheets for any
6、 Hazardous materials used forproper ventilation and 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 thi
7、s standard to establish appro-priate safety and health practices and determine the applicableof regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D413 Test Methods for Rubber PropertyAdhesion to Flex-ible SubstrateD638 Test Method for Tensile Properties of PlasticsD751 Te
8、st Methods for Coated FabricsD882 Test Method for Tensile Properties of Thin PlasticSheetingD4439 Terminology for Geosynthetics2.2 ANSI/NSF Standard:ANSI/NSF Standard 5433.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bodied chemical agent,na chemical fluid containinga portion
9、of the parent 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 fus
10、ion process.3.1.3 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
11、process.1This test 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 May 1,2013.Published June 2013.Originallyapproved in 1997.Last previous edition approved in 2008 as D621498(2008
12、).DOI:10.1520/D6214_D6214M-98R13E01.2For 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 Natio
13、nal Standards 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 States1 3.2 For other terms refer to Terminology D4439.4.Significance and Use4.1 SignificanceThe increased
14、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,hascreated a need to standardize tests by which the various seamscan be compared and the quality of the s
15、eam 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 methodshould be used with site-specific contract plans,specificationand CQC/CQA documents.This test method is us
16、eful forspecification testing and for comparative purposes,but doesnot necessarily measure the ultimate strength that the seammay acquire.5.Apparatus5.1 A testing machine of the constant-rate-of-cross head-movement type comprising essentially of the following:5.1.1 Fixed MemberA fixed or essentially stationarymember carrying one grip.5.1.2 Movable MemberA movable member carrying asecond grip.5.1.3 GripsGrips for holding the test specimen betweenthe fixed member and the movable member and minimiz
