ASTM D7465-08

Standard Specification for Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In Geomembrane Applications

SCOPE
1.1 This specification covers flexible sheet made from ethylene propylene diene terpolymer (EPDM) geomembrane intended for use in geotechnical and geoenvironmental applications. The tests and property limits used to characterize the sheet are values to ensure minimum quality for the intended use. The vulcanized rubber sheet may be non-reinforced, fabric or scrim reinforced..  
1.2 In place geomembrane design criteria, such as field seaming strength, and material compatibility, among others, are factors that must be considered but are beyond the scope of this specification.
1.3 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are for information only.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Jun-2008
• ICS: 59.080.70 - Geotextiles
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.10 - Geomembranes

Relations

• Replaced By: ASTM D7465/D7465M-15 - Standard Specification for Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In Geomembrane Applications
• Effective Date: 01-May-2015

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D7465 −08
StandardSpecification for
Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In
Geomembrane Applications
This standard is issued under the fixed designation D7465; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope canized Rubber and Thermoplastic Elastomers
D751Test Methods for Coated Fabrics
1.1 This specification covers flexible sheet made from
D1149TestMethodsforRubberDeterioration—Crackingin
ethylene propylene diene terpolymer (EPDM) geomembrane
an Ozone Controlled Environment
intended for use in geotechnical and geoenvironmental appli-
D1204Test Method for Linear Dimensional Changes of
cations. The tests and property limits used to characterize the
Nonrigid Thermoplastic Sheeting or Film at Elevated
sheet are values to ensure minimum quality for the intended
Temperature
use.Thevulcanizedrubbersheetmaybenon-reinforced,fabric
D1418 Practice for Rubber and Rubber Latices—
or scrim reinforced.
Nomenclature
1.2 In place geomembrane design criteria, such as field
D2137TestMethodsforRubberProperty—BrittlenessPoint
seaming strength, and material compatibility, among others,
of Flexible Polymers and Coated Fabrics
arefactorsthatmustbeconsideredbutarebeyondthescopeof
D4439Terminology for Geosynthetics
this specification.
D4833 Test Method for Index Puncture Resistance of
Geomembranes and Related Products
1.3 The values stated in SI units are to be regarded as the
standard. The values stated in parentheses are for information D7004Test Method for Grab Tensile Properties of Rein-
forced Geomembranes
only.
G151PracticeforExposingNonmetallicMaterialsinAccel-
1.4 This standard does not purport to address all of the
erated Test Devices that Use Laboratory Light Sources
safety concerns, if any, associated with its use. It is the
G155Practice for Operating XenonArc LightApparatus for
responsibility of the user of this standard to establish appro-
Exposure of Non-Metallic Materials
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3. Terminology
2. Referenced Documents
3.1 Definitions:
2.1 ASTM Standards: 3.1.1 Fordefinitionsofothergeosynthetictermsusedinthis
D412TestMethodsforVulcanizedRubberandThermoplas-
guide, refer to Terminology D4439.
tic Elastomers—Tension
3.1.2 EPDM, n—terpolymer of ethylene, propylene, and
D471Test Method for Rubber Property—Effect of Liquids
diene with the residual unsaturated portion of the diene in the
D518 Test Method for Rubber Deterioration—Surface
side chain. D1418
Cracking (Withdrawn 2007)
3.1.3 composite, n—factory laminated non-woven geotex-
D573Test Method for Rubber—Deterioration in an Air
tile and EPDM.
Oven
D624Test Method for Tear Strength of Conventional Vul-
4. Classification
4.1 Types describe the sheet construction:
This specification is under the jurisdiction of ASTM Committee D35 on
4.1.1 Type I—Non-reinforced.
GeosyntheticsandisthedirectresponsibilityofSubcommitteeD35.10onGeomem-
4.1.2 Type II—Scrim (or fabric) internally reinforced.
branes.
Current edition approved July 1, 2008. Published October 2008. DOI: 10.1520/
D7465-08.
5. Materials and Manufacture
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.1 ThesheetshallbeformulatedfromEPDMpolymersand
Standards volume information, refer to the standard’s Document Summary page on
other compounding ingredients. EPDM shall be the principal
the ASTM website.
polymerusedinthesheetandshallbegreaterthan95%ofthe
The last approved version of this historical standard is referenced on
www.astm.org. total polymer content.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7465−08
TABLE 1 Physical Requirements for EPDM Sheet
Type ASTM I II
Thickness, min, mm (in.):
Sheet-overall D412 Type 1 1.016 (0.040) 1.016 (0.040)
Coating over scrim or fabric D7004 Type 11 . 0.38 (0.015)
Breaking Strength, min, N (lbf) D7004 Grab Method . 400 (90)
Tensile strength, min, MPa (psi) D412 Die C 9.0 (1305) .
Puncture Resistance N (lbs) Min. D4833 133 (30) 270 (60)
A
Elongation, ultimate, min % D412 Die C 300 250
Elongation @ fabric break, ultimate, D7004, Grab
min, % Method, 50 mm
Machine direction (2 in.) per 15
Cross direction minute jaw separation rate 15
Tensile set, max D412 Method A, Die C 10 .
Tear resistance, min, kN/m (lbf/in.) D624 Die C 26.27 (150) .
Tearing strength, min, N (lbf) D7004, B-Tongue . 45 (10
Brittleness point, max °C (°F) D2137 –45 (–49) –45 (–49)
Ozone resistance, no cracks D1149 pass pass
Heat aging: D573
Breaking strength, min, N (lbf) D7004 356 (80)
Tensile strength, min, mPa (psi) D412 Method A, Die C 8.3 (1205) .
A
Elongation, ultimate, min, % D412 Die C 200 200
Tear resistance, min, kN/m (lbf/in) D624 Die C 21.9 (125) .
Linear dimensional change, maz, % D1204 ±1 ±1
A
Water absorption, max, mass, % D471 ± 8, –2 ± 8, –2
Accelerated Weathering: G151 and G155
Visual inspection D518 pass pass
PRFSE, min, % 30 .
Elongation, ultimate, min, % 200 .
A
Specimens to be prepared from coating rubber compound, vulcanized in a similar method to the reinforced products.
NOTE 1—Pockmarks are oblong depressions, cavities or craters on the
5.2 Tomakeseamsandrepairs,thesheetshallbecapableof
surface of the sheet that have an approximate surface dimension of 3.2 by
being bonded watertight to itself and the supplier or fabricator
1.6 mm (1/8 by 1/16 in.), and have a maximum depth approaching one
shall recommend suitable methods.
half of the sheet thickness.
6. Physical Properties and Requirements
9. Test Methods
6.1 The sheet shall conform to the physical requirements
9.1 Dimensions—Test Methods D751, after permitting the
prescribed in Table 1.
sheettorelaxat23° 62°C(73.4° 64°F)for1hour 615min.
6.2 The tolerance for time conditions (aging, weathering,
9.2 Thickness, Sheet Overall—Fromacrossthefullwidthof
and so forth) is 615 min or 61 % of the period; whichever is
the unbuffed sheet, take three samples, 300 by 300 mm (1 by
greater, unless otherwise specified.
1 ft). Measure the thickness of each corner. Refer to Test
6.3 Tolerances for temperature shall be 62°C(64 °F).
MethodD412forTypeIsheetandTestMethodD751forType
II sheet.
7. Dimensions
9.3 Thickness of Coating Over Scrim (Reinforcing
7.1 The width and length of the sheet shall be agreed upon
Fabric)—Optical Method—see Annex A1.
between the purchaser and the supplier.
9.4 Breaking Strength—Test Methods D751, Grab Method.
7.1.1 The width and length tolerance shall be +3 %, -0 %.
9.5 Tensile Strength—Test Methods D412, Die C.
7.2 The thickness tolerance shall be +15 %, -10 % of the
thickness agreed upon between the purchaser and supplier, but 9.6 Puncture Resistance—Test Method D4833.
in no case shall the thickness be less than the minimum listed
9.7 Elongation, Ultimate—Test Methods D412, Die C.
in Table 1.
9.8 Elongation at Fabric Break, Ultimate—Test Method
D751, Grab Method, 50 mm (2 in.) per minute jaw separation
8. Workmanship, Finish, and Appearance
rate.
8.1 The sheet, including the full width of factory seams if
9.9 Tensile Set—Test Methods D412, Method A, Die C, 50
present, shall be fully adhered, watertight, and visibly free of
% elongation.
pinholes, particles of foreign matter, undispersed raw material
or other manufacturing defects that might affect serviceability.
9.10 Tear Resistance—Test Method D624, Die C.
If the number of irregularities in the form of pockmarks (see
9.11 Tearing Strength—TestMethodsD751,B-TongueTear.
Note1)appearexcessiveonthesheet(orportionthereof),then
its rejection shall be negotiated between involved parties. 9.12 Brittleness Point—Test Methods D2137.
8.2 Edg
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