1、Designation: D4637/D4637M 141D4637/D4637M 15Standard Specification forEPDM Sheet Used In Single-Ply Roof Membrane1This standard is issued under the fixed designation D4637/D4637M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the
2、 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1 NOTEEditorially corrected Table 1
3、 in July 2014.1. Scope1.1 This specification covers flexible sheet made from ethylene-propylene-diene terpolymer (EPDM) intended for use insingle-ply roofing membranes exposed to the weather. The tests and property limits used to characterize the sheet are values toensure minimum quality for the int
4、ended use. The sheet may be non-reinforced, fabric- or scrim-reinforced, or fabric-backedvulcanized rubber sheet.1.2 In-place roof system design criteria, such as fire resistance, field seaming strength, material compatibility, and upliftresistance, among others, are factors that must be considered
5、but are beyond the scope of this specification.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from
6、thetwo systems may result in non-conformance with the standard.1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address allof the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to
7、establish appropriatesafety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTensionD413 Test Methods for Rubber PropertyAdhesion to Flexible Subs
8、trateD471 Test Method for Rubber PropertyEffect of LiquidsD518 Test Method for Rubber DeteriorationSurface Cracking (Withdrawn 2007)3D573 Test Method for RubberDeterioration in an Air OvenD624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic ElastomersD751 Test Metho
9、ds for Coated FabricsD816 Test Methods for Rubber CementsD1149 Test Methods for Rubber DeteriorationCracking in an Ozone Controlled EnvironmentD1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated TemperatureD2137 Test Methods for Rubber PropertyBrit
10、tleness Point of Flexible Polymers and Coated FabricsD5602D5602/D5602M Test Method for Static Puncture Resistance of Roofing Membrane SpecimensD5635D5635/D5635M Test Method for Dynamic Puncture Resistance of Roofing Membrane SpecimensD6382D6382/D6382M Practice for Dynamic Mechanical Analysis and The
11、rmogravimetry of Roofing and WaterproofingMembrane MaterialD7635/D7635M Test Method for Measurement of Thickness of Coatings Over Fabric ReinforcementG151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light SourcesG155 Practice for Operating Xenon Arc Li
12、ght Apparatus for Exposure of Non-Metallic Materials1 This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.18 onNonbituminous Organic Roof Coverings.Current edition approved May 1, 2014Nov. 1, 2015. Publi
13、shed June 2014December 2015. Originally approved in 1987. Last previous edition approved in 20132014 asD4637/D4637M 13.D4637/D4637M 141. DOI: 10.1520/D4637_D4637M-14E01.10.1520/D4637_D4637M-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at ser
14、viceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of
15、an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as publ
16、ished by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Classification3.1 Types describe the sheet construction:3.1.1 Type INon-reinforced.3.1.2 Type IIScrim (or fabric) internally re
17、inforced.3.1.3 Type IIIFabric backed.4. Materials and Manufacture4.1 The sheet shall be formulated from EPDM polymers and other compounding ingredients. EPDM shall be the principalpolymer used in the sheet and shall be greater than 95 % of the total polymer content.4.2 To make seams and repairs, the
18、 sheet shall be capable of being bonded watertight to itself and the supplier or fabricator shallrecommend suitable methods.5. Physical Properties and Tolerances5.1 The sheet shall conform to the physical requirements prescribed in Table 1.5.2 The tolerance for time conditions (aging, weathering, an
19、d so forth) is 615 min or 61 % of the period; whichever is greater,unless otherwise specified.5.3 Tolerances for temperature shall be 62C 64F.6. Dimensions6.1 The width and length of the sheet shall be agreed upon between the purchaser and the supplier.6.1.1 The width and length tolerance shall be +
20、3 %, 0 %.6.2 The thickness tolerance shall be +15 %, 10 % of the thickness agreed upon between the purchaser and supplier, but in nocase shall the thickness be less than the minimum listed in Table 1.TABLE 1 Physical Requirements for EPDM SheetType I II IIIThickness, min, mm in.:Sheet-overall 1.016
21、0.040 1.016 0.040 .Coating over scrim or fabric . 0.38 0.015 0.76 0.030Breaking strength, min, N lbf . 400 90 400 90Tensile strength, min, MPa psi 9.0 1305 . .Dynamic Puncture Resistance, Type I at 5 J, Type II at at 10 J pass passStatic Puncture Resistance, Type I at 20 kg 44.1 lbf, Type II at25 kg
22、 55.1 lbfpass passElongation, ultimate, min,% 300 250A 300AElongation fabric break, ultimate, min, %Machine directionCross direction1515Tensile set, max, % 10 . .Tear resistance, min, kN/m lbf/in. 26.27 150 . .Tearing strength, min, N lbf . 45 10 45 10Brittleness point, max, C F 45 49 45 49 45 49Ozo
23、ne resistance, no cracks pass pass passHeat aging:Breaking strength, min, N lbf . 356 80 356 80Tensile strength, min, MPa psi 8.3 1205 . .Elongation, ultimate, min,% 200 200A 200ATear resistance, min, kN/m lbf/in. 21.9 125 . .Linear dimensional change, max, % 1 1 1Water absorption, max, mass % + 8,
24、2 + 8, 2A + 8, 2A Water absorption, max, mass % + 8, 2 + 8, 2A + 8, 2AFactory seam strength, min, kN/m lbf/in. 8.8 50 or sheet failureWeather resistance:Visual inspection no cracks or crazing no cracks or crazing no cracks or crazingPRFSE, min, % 30 . .Elongation, ultimate, min, % 200 . .Fabric adhe
25、sion, min, N/m lbf/in. . . 525 3Editorially corrected.A Specimens to be prepared from coating rubber compound, vulcanized in a similar method to the reinforced products.D4637/D4637M 1527. Workmanship, Finish, and Appearance7.1 The sheet, including the full width of factory seams if present, shall be
26、 fully adhered, watertight, and visibly free of pinholes,particles of foreign matter, undispersed raw material, or other manufacturing defects that might affect serviceability. If the numberof irregularities in the form of pockmarks (see Note 1) appear excessive on the sheet (or portion thereof), th
27、en its rejection shallbe negotiated between involved parties.7.2 Edges of the sheets shall be straight and flat so that they may be seamed to one another without fishmouthing.NOTE 1Pockmarks are oblong depressions, cavities, or craters on the surface of the sheet that have an approximate surface dim
28、ension of 3.2 by 1.6mm 18 by 116 in., and have a maximum depth approaching one half of the sheet thickness.8. Test Methods8.1 DimensionsTest Methods D751, after permitting the sheet to relax at 23 6 2C 73.4 6 4F for 1 h 6 15 min.8.2 Thickness, Sheet OverallFrom across the full width of the unbuffed
29、sheet, take three samples, 300 by 300 mm 1 by 1 ft.Measure the thickness of each corner. On fabric backed (Type III) the coating thickness can be measured after cutting or buffingfabric from the rubber. Refer to Test Method D412 for Type I sheet and Test Method D751 for Type II and Type III sheet.8.
30、3 Thickness of Coating Over Scrim (Reinforcing Fabric)Follow preparation procedures as specified in Test MethodD7635/D7635M. The thickness measurements shall be conducted as described in the test method on the coating on the sideintended to be exposed to the weather.8.4 Breaking StrengthTest Methods
31、 D751, Grab Method.8.5 Tensile StrengthTest Methods D412, Die C.8.6 Dynamic Puncture ResistanceTest Method D5635D5635/D5635M, at an energy of 5 J min at 23 6 2C 73.4 6 4F forType I and an energy of 10 J min for Type II.8.7 Static Puncture ResistanceTest Method D5602D5602/D5602M, at a load of 20 kg 4
32、4.1 lbf 20 kg 44.1 lbf min for TypeI and a load of 25 kg 55.1 lbf 25 kg 55.1 lbf min for Type II at 23 6 2C 73.4 6 4F.8.8 Elongation, UltimateTest Methods D412, Die C.8.9 Elongation at Fabric Break, UltimateTest Method D751, Grab Method, 50 mm 2 in. per minute jaw separation rate.8.10 Tensile SetTes
33、t Methods D412, Method A, Die C, 50 % elongation.8.11 Tear ResistanceTest Method D624, Die C.8.12 Tearing StrengthTest Methods D751, B-Tongue Tear.8.13 Brittleness PointTest Methods D2137.8.14 Ozone ResistanceTest Method D1149. Inspect at 7 magnification on specimens exposed to 100 mPa 1 105 psiozon
34、e in air at 40 6 2C 104 6 4F. Elongate Type I specimens 50 % for 166 6 1.66 h exposure. Type II and Type III specimensmust be wrapped around a 75 mm 3 in. diameter mandrel for 166 6 1.66 h exposure. The required specimen width is 25 mm1 in.8.15 Dark Oven Heat ExposureTest Method D573. Expose black s
35、heet to dark oven heat at 116 6 2C 240 6 4F for 6706 6.7 h and white sheet for 166 6 1.66 h. Sample that has been exposed to dark oven heat is then used for testing of breakingstrength, tensile strength, elongation, tear resistance, and linear dimensional change. (Linear dimensional change tests sam
36、plebefore and after exposure to dark oven heat.)8.15.1 Breaking StrengthTest Method D751, Grab Method.8.15.2 Tensile StrengthTest Method D412, Die C.8.15.3 Elongation, UltimateTest Method D412, Die C.8.15.4 Tear ResistanceTest Method D624, Die C.8.15.5 Linear Dimensional ChangeTest Method D1204.8.16
37、 Water AbsorptionTest Method D471, at 70 6 2C 158 6 4F for 166 6 1.66 h.8.17 Factory Seam StrengthMethods D816, Method B. Modify procedure by cutting a 25-mm 1-in. wide by 300-mm12-in. long sample across the lap seam. Place in jaws approximately 50 mm 2 in. from edges of the overlap area and test at
38、50 mm 2 in./min.8.18 Fabric AdhesionTest Method D413. Perform test on strip specimen-Type A, using 180 peel.8.19 Weather ResistanceAccelerated weathering tests shall be performed in accordance with Practices G151 and G155.These tests are performed on the intact sheet with the weathering side facing
39、the lamps. Mount specimens for exposure under nostrain. After exposure the specimens shall be removed and inspected immediately for cracks and crazing at 10 % strain in the bentloop configuration in accordance with Test Method D518 under 7 magnification. A specimen is rated “pass” if no cracks orD46
40、37/D4637M 153crazing are observed. In addition, for Type I sheet, determine tensile strength and ultimate elongation after weather exposure.Calculate the specimen percent retained fractional strain energy (PRFSE):PRFSE5 Tensile Strength3Elongation! agedTensile Strength3Elongation! original 31008.20
41、Weather ResistancePractices G151 and G155 Xenon-Arc shall be operated in accordance with the following conditions:Filter Type Daylight filterIrradiance 0.35 to 0.70 W/(m2nm) at340 nm. The maximumallowable operationalfluctuation of the irradiancesetting is 0.02 W/(m2 nm).(42 to 84 W/m2 at 300 to 400n
42、m. The maximumallowable operationalfluctuation of theirradiance setting is 2.5W/m2.)Irradiance 0.35 to 0.70 W/(m2nm) at340 nm. The maximumallowable operationalfluctuation of the irradiancesetting is 0.02 W/(m2 nm).(42 to 84 W/m2 at 300 to 400nm. The maximumallowable operationalfluctuation of theirra
43、diance setting is 2.5W/m2.)Cycle 690 15 min light, 30 min light,plus water spray on the frontsurface.UninsulatedBlack PanelTemperature80C 176F during the dryperiod. The maximumallowable operationalfluctuation is 2.5C 5F.Chamber AirTemperature(where applicable)50C. The maximum allowableoperational fl
44、uctuation is2C.RelativeHumidity50 %. The maximum allowableoperational fluctuation is5 %.RelativeHumidity50 %. The maximum allowableoperational fluctuation is10 %.Spray Water Refer to Practice G155, Section6.6.1.SpecimenReposit-ioning(if required)Refer to Practice G155, Section9.5.Every 315 KJ (m2 nm
45、) at 340nm (37.8 MJ/m2 at300 to 400 nm.).ExposuredurationWhite2520 KJ/(m2nm) at 340nm (302.4 MJ/m2 at300 to 400 nm.)Black5040 KJ/(m2nm) at 340nm (604.8 MJ/m2 at300 to 400 nm.)ExposuredurationWhite2520 KJ/(m2nm) at 340nm (302.4 MJ/m2at 300 to 400 nm.)Black10 080 KJ/(m2nm)at 340 nm (1209.6 MJ/m2 at300
46、 to 400 nm.)NOTE 2If the operational fluctuations are greater than the maximum allowable after the equipment has stabilized, discontinue the test and correct thecause of the problem before continuing.D4637/D4637M 1549. Inspection and Special Testing9.1 The manufacturer shall inspect and test product
47、ion to ensure compliance of the product with this specification.10. Rejection and Resubmittal10.1 Failure to conform to any one of the requirements prescribed in this specification shall constitute grounds for rejection.Rejection shall be reported to the producer or supplier promptly and in writing.
48、 The seller shall have the right to reinspect therejected shipment and resubmit the lot after removal of those packages not conforming to the specified requirements.11. Product Marking11.1 The sheet shall be identified on the side intended to be exposed to the weather with this ASTM designation numb
49、er(Specification D4637/D4637M) andASTM type, the name of the manufacturer or supplier, or the generic sheet type. The type andsize of the identification is at the manufacturers option. Such identification shall occur at intervals not to exceed 4 m 13 ft inthe long direction of the sheet and not be located near an intended seam area. The i
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