1、Designation:D7465/D7465M151Standard Specification forEthylene Propylene Diene Terpolymer(EPDM)Sheet Used InGeomembrane Applications1This standard is issued under the fixed designation D7465/D7465M;the number immediately following the designation indicates theyear of original adoption or,in the case
2、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.1NOTESection 9 was editorially corrected in July 2015.1.Scope1.1 This specification covers flexible sheet made
3、 fromethylene propylene diene terpolymer(EPDM)geomembraneintended for use in geotechnical and geoenvironmental appli-cations.The tests and property limits used to characterize thesheet are values to ensure minimum quality for the intendeduse.The vulcanized rubber sheet may be non-reinforced,fabricor
4、 scrim reinforced.1.2 In place geomembrane design criteria,such as fieldseaming strength,and material compatibility,among others,are factors that must be considered but are beyond the scope ofthis specification.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately
5、 as standard.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.1.4 This standard does not purport to address all of thesafety concerns,if any,a
6、ssociated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D412 Test Methods for Vulcanized Rubber and Thermoplas-t
7、ic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD518 Test Method for Rubber DeteriorationSurfaceCracking(Withdrawn 2007)3D573 Test Method for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD7
8、51 Test Methods for Coated FabricsD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1204 Test Method for Linear Dimensional Changes ofNonrigid Thermoplastic Sheeting or Film at ElevatedTemperatureD1418 PracticeforRubberandRubberLaticesNomenclatureD2137 Test Method
9、s for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD4439 Terminology for GeosyntheticsD4833/D4833M Test Method for Index Puncture Resistanceof Geomembranes and Related ProductsD5884 Test Method for Determining Tearing Strength ofInternally Reinforced GeomembranesD7004/D7004
10、M Test Method for Grab Tensile Properties ofReinforced GeomembranesD7635/D7635M Test Method for Measurement of Thicknessof Coatings Over Fabric ReinforcementG151 Practice for Exposing Nonmetallic Materials inAccel-erated Test Devices that Use Laboratory Light SourcesG155 Practice for Operating Xenon
11、 Arc Light Apparatus forExposure of Non-Metallic Materials3.Terminology3.1 Definitions:3.1.1 For definitions of other geosynthetic terms used in thisguide,refer to Terminology D4439.3.1.2 composite,nfactory laminated non-woven geotex-tile and EPDM.3.1.3 EPDM,nterpolymer of ethylene,propylene,anddien
12、e with the residual unsaturated portion of the diene in theside chain.D14181This specification 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 1,2015.Published May 2015.Originallyapp
13、roved in 2008.Last previous edition approved in 2008 as D746508.DOI:10.1520/D7465_D7465M-15E01.2For 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 Sum
14、mary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Classification4.1 Types describe the sheet construction:4.1.1 Type INon-rei
15、nforced.4.1.2 Type IIScrim(or fabric)internally reinforced.5.Materials and Manufacture5.1 The sheet shall be formulated from EPDM polymers andother compounding ingredients.EPDM shall be the principalpolymer used in the sheet and shall be greater than 95%of thetotal polymer content.5.2 To make seams
16、and repairs,the sheet shall be capable ofbeing bonded watertight to itself and the supplier or fabricatorshall recommend suitable methods.6.Physical Properties and Requirements6.1 The sheet shall conform to the physical requirementsprescribed in Table 1.6.2 The tolerance for time conditions(aging,weathering,and so forth)is 615 min or 61%of the period;whichever isgreater,unless otherwise specified.6.3 Tolerances for temperature shall be 62C 64F.7.Dimensions7.1 The width and length of the sheet sh
