1、Designation: D6754/D6754M 10Standard Specification forKetone Ethylene Ester Based Sheet Roofing1This standard is issued under the fixed designation D6754/D6754M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revi
2、sion. 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 specification covers flexible sheet made fromketone ethylene ester (KEE) as the primary polymer intendedfor use in single
3、ply roofing membrane exposed to the weather.The sheet shall be reinforced with fabric.1.2 In-place roof system design criteria, such as fire resis-tance, field-seaming strength, material compatibility, upliftresistance, in-situ shrinkage, among others, are factors thatmust be considered, but are bey
4、ond the scope of this specifi-cation.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately 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 syste
5、ms may result in non-conformancewith the standard.1.4 The following precautionary caveat pertains to the testmethods portion only, Section 8, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the us
6、erof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory require-ments prior to use.2. Referenced Documents2.1 ASTM Standards:2D471 Test Method for Rubber PropertyEffect of LiquidsD751 Test Methods for Coated FabricsD1079 Terminology Relati
7、ng to Roofing and WaterproofingD1204 Test Method for Linear Dimensional Changes ofNonrigid Thermoplastic Sheeting or Film at ElevatedTemperatureD2136 Test Method for Coated FabricsLow-TemperatureBend TestD3045 Practice for Heat Aging of Plastics Without LoadD3389 Test Method for Coated FabricsAbrasi
8、on Resistance(Rotary Platform Abrader)D5602 Test Method for Static Puncture Resistance of Roof-ing Membrane SpecimensD5635 Test Method for Dynamic Puncture Resistance ofRoofing Membrane SpecimensG21 Practice for Determining Resistance of Synthetic Poly-meric Materials to FungiG151 Practice for Expos
9、ing Nonmetallic Materials in Ac-celerated Test Devices that Use Laboratory Light SourcesG154 Practice for Operating Fluorescent Light Apparatusfor UV Exposure of Nonmetallic MaterialsG155 Practice for Operating XenonArc LightApparatus forExposure of Non-Metallic Materials3. Terminology3.1 Definition
10、sTerminology D1079 shall apply to thisspecification.3.2 ketone ethylene ester (KEE), na high molecularweight thermoplastic copolymer of ethylene, containing carbonmonoxide and either vinyl acetate or acrylate monomer whichare incorporated to provide softness and polarity.3.2.1 DiscussionEster groups
11、 of the vinyl acetate oracrylate are pendant from the ethylene backbone and reducecrystallinity, which provides flexibility. Carbon monoxidegroups within the polymer backbone provide polarity. TheKEE polymer is therefore a flexible polymer, which is misciblewith other polymers of similar polarity.3.
12、3 polymer content, nin this specification, polymer con-tent shall be defined as polymeric materials which are in thesolid state at room temperature, and are high (greater than50 000 Mw) in molecular weight. Other ingredients, known tothe art of polymer compounding, such as certain waxes,stabilizers,
13、 and other additives, while polymeric in nature arenot considered to be part of the base polymer system.4. Materials and Manufacture4.1 The sheet shall be formulated from the appropriatepolymers and other compounding ingredients. The KEE poly-mer shall be a minimum of 50 % by weight of the polymerco
14、ntent of the sheet.4.2 The sheet shall be reinforced internally with a fabric.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.18on Nonbituminous Organic Roof Coverings.Current edition approved July 1
15、, 2010. Published August 2010. Originallyapproved in 2002. Last previous edition approved in 2002 as D6754 02. DOI:10.1520/D6754_D6754M10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume
16、information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.3 To make seam and repairs, the sheet shall be capable ofbeing bonded watertight to itself during the desi
17、gn service lifeof the sheets. The manufacturer shall recommend a suitablemethod. Design service life is defined as the designated timeperiod of intended system performance.5. Physical Properties5.1 The sheet shall conform to the physical requirementsprescribed in Table 1.5.2 The tolerance for time c
18、onditions (aging, weathering,and so forth) is 615 min or 61 % of the period, whichever isgreater, unless specified.5.3 The tolerance for temperature conditions (aging, weath-ering, and so forth) is 62C 4F of the specified temperature,unless otherwise specified.6. Dimensions and Permissible Variation
19、s6.1 The width and length of the sheet shall be agreed uponbetween the purchaser and the supplier as part of the purchasecontract. The width and length tolerance shall be +3 % -0 %after permitting the sheet to relax1hat236 1C 73 6 2F.6.2 The thickness and thickness tolerance shall be agreedupon betw
20、een the purchaser and supplier as part of thepurchase contract, subject to the minimum requirement inTable 1.7. Workmanship, Finish, and Appearance7.1 The sheet, including factory seams if present, shall bewatertight and be visually free of pinholes, particles of foreignmatter, undispersed raw mater
21、ials, protruding reinforcement,and other manufacturing defects that might affect serviceabil-ity.7.2 The sheet shall be visually free of nicks and cuts, voids,thin areas, delaminations, moisture-bound fabric, or otherdefects.7.3 Edges of the sheet shall be straight and flat so that theymay be seamed
22、 to one another.8. Test Methods8.1 Thickness, OverallTest Method D751.8.2 Thickness, Coating Over Reinforcement OpticalMethodsee Annex A1, Optical Method for Measurement ofThickness of Coating.8.3 Breaking StrengthTest Method D751, Procedure BStrip Method.8.4 Elongation at BreakTest Method D751.8.5
23、Tearing StrengthTest Method D751, Procedure BTongue Tear Method, 200-mm 8-in. by 250-mm 10-in.specimen size. Test at 5.0 mm/s 12 in./min.8.6 Linear Dimensional ChangeTest Method D1204,1hat 100 6 2C 212 6 5F.8.7 Fabric AdhesionTest Method D751, 5.0-mm/s 12-in./min jaw speed.8.8 Heat AgingPractice D30
24、45,at806 2C 176 6 4Ffor 56 days 6 2h.8.8.1 After Heat Aging Low Temperature BendTestMethod D2136,at356 1C 30 6 2F.8.9 Low Temperature BendTest Method D2136 at 35 61C 30 6 2F.8.10 Water AbsorptionTest Method D471, Procedure forexposure to one side only in water, at 70 6 2C 158 6 4Ffor 166 h.8.11 Fact
25、ory Seam StrengthTest Method D751, GrabMethod.8.12 Hydrostatic ResistanceTest Method D751, MethodA, Procedure 1.8.13 Static Puncture TestTest Method D5602, at a load of45 kg 99 lbf min. at 23 6 1C 73 6 2F.8.14 Dynamic Puncture TestTest Method D5635,aten-ergy of 10 J min. 23 6 1C 73 6 2F.8.15 Acceler
26、ated Weathering TestThe two different typesof exposures may produce different test results. Therefore, theycannot be used interchangeably without supporting data thatdemonstrates equivalency of the procedures for the materialtested.8.15.1 Xenon Arc Exposure TestPractices G155 andG151, 5000 hours exp
27、osure. Irradiance: 0.35 W/(m2nm) at 340nm. The maximum allowable operational fluctuation is 60.02W/(m2nm). Cycle: 102-min light followed by 18-min lightplus water spray on the front surface. Spray Water: Refer toPractice G155, Section 6.6.1 (Water Spray). Typical spraywater temperature is 21 6 5C 70
28、 6 9F , but if ambienttemperature is low and a holding tank is not used to storepurified water, the water temperature can be below the typicalrange. Uninsulated Black Panel Temperature: 63C 145Fduring the dry period. The maximum allowable operationalfluctuation is 62.5C 65F. Chamber Air Temperature(
29、where applicable): 44C 111F. The maximum allowableoperational fluctuation is 62C 3.6F. Relative Humidity:50 %. The maximum allowable operational fluctuation is65%TABLE 1 Physical Requirements of the KEE-ReinforcedMembranePropertyThickness, min., mm in. 0.81 0.032Thickness over fiber, min., mm in. 0.
30、18 0.007Breaking strength, strip , N lbf 1550 348Elongation at break, strip, min., % 18Tearing strength, min., N lbf 480 108Lineal dimension change, max., % 1.3Fabric adhesion, min., N/m lbf/in. 3330 19Retention of properties after heat aging:Breaking strength, strip, min., % of original 90Elongatio
31、n at break, strip, min., % of original 90Low-temperature bend after heat aging passLow-temperature bend passChange in weight after exposure in water, max, % 0.0, +6.0Factory seam strength, min., N lbf 1955 440Hydrostatic resistance, min., MPa psi 4.1 590Static puncture resistance passDynamic punctur
32、e resistance passAccelerated weathering test after 5000-h xenon arc light exposureCracking (73 magnification) noneCrazing (73 magnification) noneAccelerated weathering test after 5000-h fluorescent light exposureCracking (73 magnification) noneCrazing (73 magnification) noneFungi resistanceSustained
33、 growth no growthDiscoloration noneAbrasion test, min., cycles 1500D6754/D6754M 102NOTE 1If the operational fluctuations are greater than the maximumallowable after the equipment has stabilized, discontinue the test andcorrect the problem before continuing.8.16 Fluorescent UV/Condensation Exposure T
34、estPractices G154 and G151, 5000 hours exposure. Lamp type:Fluorescent UVA-340. Irradiance: 0.68 W/(m2nm) at 340 nm.The maximum allowable operational fluctuation is 60.02W/(m2nm). Cycle: 8-h light at 70C 158F; 4-h condensationat 50C 122F. The maximum allowable operational fluctua-tion is 62.5C 65F.8
35、.17 Fungi ResistancePractice G21, 28 days.8.18 Abrasion TestTest Method D3389, using the H-18Wheel and 1000-g load. Run until fabric is visible.8.19 DimensionsTest Method D751, after unrolling orunfolding and permitting the sheet to relax for 1 h at 23 6 lC73 6 2F.9. Inspection and Special Testing9.
36、1 The manufacturer shall inspect and test the product toassure compliance of the product with this specification.9.2 The purchaser may, in the contract, order special tests,which the supplier shall be required to make beyond thosedescribed in Table 1.9.3 If the results of any tests do not conform to
37、 therequirements of this specification, retesting to determine con-formity shall be performed as agreed upon between thepurchaser and supplier.10. Rejection and Resubmittal10.1 Failure to conform to any one of the requirementsprescribed in this specification shall constitute grounds forrejection. Th
38、e seller shall have the right to reinspect therejected shipment and resubmit the lot after removal of thosepackages not conforming to the specified requirements.11. Product Marking11.1 The sheet shall be identified on the side intended to beexposed to the weather with this ASTM designation, the name
39、of the manufacturer or supplier, and KEE. The type ofidentification is at the manufacturers option. Such identifica-tion shall occur at intervals not to exceed3m9ft10in. in thelong direction. The identification shall be applied in such amanner as to be legible five years from installation. Identifi-
40、cation shall not be required when so specified by the purchaser.12. Packaging and Package Marking12.1 The material shall be rolled on a substantial core andpackaged in a standard commercial manner unless otherwisespecified in the contract or order.12.2 Shipping container shall be marked with the nam
41、e ofthe material, the stock and lot numbers, and the ASTMdesignation number, the size and quantity, the name of themanufacturer or the supplier, and the number of the contract ororder.13. Keywords13.1 flexible sheet; KEE; reinforcing fabrics; reinforcingfibers; roofing; seams; single-ply roofing mem
42、braneANNEX(Mandatory Information)A1. OPTICAL METHOD FOR MEASUREMENT OF THICKNESS OF COATINGA1.1 ScopeA1.1.1 This is a method for measuring the thickness of thecoating over fiber backing or reinforcing fabric.A1.2 Measurement MethodA1.2.1 PrincipleThe thickness of coating material overfiber, fabric,
43、or scrim can be observed with a standardreflectance microscope. Measurement is made with a calibratedeyepiece.A1.2.2 Apparatus:A1.2.2.1 Microscope,603 with reticle.A1.2.2.2 Light SourceIf light source on the microscope isnot adequate, a small high-intensity lamp may also be used.A1.2.2.3 Stage Micro
44、meter, 0.0254-mm 0.001-in. divi-sions.A1.2.3 Calibration Procedure:A1.2.3.1 Place a standard reflectance stage micrometer inplace of the specimen.A1.2.3.2 Turn on microscope light source.A1.2.3.3 Position the reticle eyepiece and the micrometersuch that the scales are superimposed. Focus the specime
45、n andreticle by turning the vertical adjustment knob.A1.2.3.4 Locate a point at which both scales line up. Countthe number of micrometer divisions away. Measure to thenearest 0.0125 mm 0.0005 in. or 0.5 mil. Increasing thenumber of divisions measured may optimize the calibration.A1.2.3.5 Repeat the
46、calibration three times and average theresults. A calibration example is given below:If four reticle divisions (RD) are found equal to 4.5 mi-crometer divisions (MD), then:1 (RD) 4.5/4 (MD) or (RD) = 1.125(MD)Since 1 micrometer division is also equal to 25.4 m 0.001in. or 1.0 mil, therefore:1 (RD) =
47、 28.6 m 0.001 125 in. or 1.125 mils or the calibration fac-torA1.2.4 Specimen Analysis:A1.2.4.1 Carefully center a sharp single edge razor orequivalent over the fiber intersections along the x-x axis.D6754/D6754M 103A1.2.4.2 Make a clean bias cut completely through thesheet.A1.2.4.3 Remove the razor
48、-cut section and mount in com-mon putty with the cut surface facing upward.A1.2.4.4 Observe the cut surface with the eyepiece reticle.Measure the thickness of the coating on either side of thethread intersection by counting the number of reticle divisions(to the nearest one-half division).A1.2.4.5 S
49、ample three areas of the coatings and average theresults.A1.3 Calculation and ReportA1.3.1 Multiply the number of reticle divisions representingthe thickness of the coating by the calibration factor. Report theaverage results from three areas of the coating to the nearest12.7 m 0.0005 in. or 0.5 mils.A1.4 Precision and BiasA1.4.1 PrecisionMeasurements are accurate to 612.7 m0.005 in. or 0.5 mils when the thicknes
