1、Designation: D 5726 98 (Reapproved 2005)Standard Specification forThermoplastic Fabrics Used in Hot-Applied Roofing andWaterproofing1This standard is issued under the fixed designation D 5726; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers thermoplastic fabrics such aspolyester, polyester/polyamide bicompone
3、nt, or compositeswith fiber glass or polyester scrims that can be used during theconstruction of hot-applied roofing and waterproofing.1.2 This specification is intended as a material specification.Issues regarding the suitability of specific roof constructions orapplication techniques are beyond th
4、e scope of this specifica-tion.1.3 The specified tests and property values used to charac-terize the respective fabrics are intended to establish minimumproperties. In-place system design criteria or performanceattributes are factors beyond the scope of this material speci-fication.1.4 The values st
5、ated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety
6、and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 123 Terminology Relating to TextilesD 1079 Terminology Relating to Roofing, Waterproofing,and Bituminous MaterialsD 1117 Guide for Evaluating Nonwoven FabricsD 17
7、76 Practice for Conditioning and Testing TextilesD 1777 Test Method for Thickness of Textile MaterialsD 4830 Test Methods for Characterizing ThermoplasticFabrics Used In Roofing and WaterproofingD 5035 Test Method for Breaking Force and Elongation ofTextile Fabrics (Strip Method)D 5733 Test Method f
8、or Tearing Strength of NonwovenFabrics by the Trapezoid ProcedureE1 Specification for ASTM Liquid-in-Glass Thermometers2.2 Other Standard:AATCC Test Set No. 128, Wrinkle Recovery Test33. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminologies D 1079 and
9、 D 123.4. Classification4.1 The thermoplastic fabrics covered by this specificationare of the following general constructions and compositions.Each is a separate class or type, differentiated by polymer type,a combination of polymers, or the manufacturing process, orsome combination thereof:4.1.1 Ty
10、pe IPolyester spunbonded with resin, unneedled;4.1.2 Type IIPolyester spunbonded with resin, needled;4.1.3 Type IIIPolyester mat plus fiber glass scrim andresin; and4.1.4 Type IVPolyester core/polyamide sheath bicompo-nent spunbonded.5. Materials and Manufacture5.1 The fabric shall be a uniform, thi
11、n, porous mat of theprimary thermoplastic polymer, with or without the addition ofreinforcing stranded glass or thermoplastic yarns. Chemicallybonding with a water-resistant resin or thermally bonding withother thermoplastic polymers shall be permitted.6. Physical Properties, Thickness, and Mass6.1
12、Fabrics shall conform to the thickness, mass, andphysical properties presented in Table 1.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.04on Felts and Fabrics.Current edition approved Dec. 1, 2005.
13、 Published December 2005. Originallyapproved in 1995. Last previous edition approved in 1998 as D 5726 98.2For 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 standa
14、rds Document Summary page onthe ASTM website.3Available from American Association of Textile Chemists and Colorists(AATCC), One Davis Dr., P.O. Box 12215, Research Triangle Park, NC 27709-2215.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United
15、 States.7. Unit Mass7.1 Determine the unit mass of the fabric using the proce-dures described in Test Methods D 1117.8. Workmanship, Finish, and Appearance8.1 The finished material shall be free of visible defectssuch as ragged or untrue edges, folds, creases, wrinkles, tears,and holes.9. Sampling9.
16、1 Sample the material and determine the properties enu-merated in this specification in accordance with the testprocedures referenced and presented herein.10. Thickness10.1 Determine the thickness of the fabric using the proce-dures described in Test Method D 1777.11. Breaking Load and Elongation11.
17、1 Determine the breaking load and elongation by the cutstrip method described in Test Methods D 4830 and D 5035.The preferred SI unit for breaking load is kN/m.12. Trapezoid Tearing Strength12.1 Determine the trapezoid tearing strength using theprocedures described in Test Method D 5733.13. Puncture
18、 Strength13.1 Determine the puncture strength using the proceduresdescribed in Test Methods D 4830.14. Heat Distortion/Stability14.1 ScopeThis test method, which uses hot silicone oil,is a procedure for simulating the distortion that may occur withthe laying of a fabric roofing ply into hot bitumen
19、during theconstruction of a hot-applied built-up roofing membrane.14.2 Summary of Test MethodFabric specimens are laidinto hot silicone oil at 260C (500F), allowed to cool to roomtemperature, and then removed and measured for percentshrinkage and rated visually for distortion.14.3 Significance and U
20、seNot all thermoplastic fabricsare suitable for hot-applied built-up roofing. This test proce-dure is designed to simulate hot-applied built-up applicationand to identify those thermoplastic fabrics that are suitable andnot susceptible to excessive shrinkage or distortion, or both.14.4 Apparatus and
21、 Materials:14.4.1 Stainless Steel Container, appropriately sized, usedto heat the silicone oil.14.4.2 Heating Mantle, used in conjunction with the con-tainer and capable of heating the silicone oil adequately.14.4.3 Thermometer, graduated in 1C (2F) intervals andincluding the range of 260 to 288C (5
22、00 to 550F) on its scale,such as ASTM No. 2F-86 (see Specification E1).14.4.4 Stainless Steel Ladle, with a capacity of 0.09 L (3oz).14.4.5 Aluminum Baking Pans, measuring approximately273-mm long by 178-wide by 25-mm deep (10.75 by 7 by 1in.).14.4.6 Silicone Oil, Dow Corning 710 Fluid4or an equiva-
23、lent.14.4.7 Safety Equipment, which includes long arm rubbergloves or hot gloves, an apron, and face shield, which arerecommended to help prevent possible injury.14.4.8 Insulation Board, a minimum 25-mm (1-in.) thick-ness, to be used beneath the metal pans as a method of reducingexcessive heat loss
24、when pouring the hot silicone oil just priorto introduction of the fabric sample.14.4.9 The AATCC Test Set No. 128, Wrinkle Recovery Test,used to visually evaluate and rate the fabric distortion aftertesting.14.5 Preparation of Specimens:14.5.1 Each test specimen shall be 254-mm (10-in.) longand 152
25、-mm (6-in.) wide, with the length dimension takenparallel to the machine direction of the fabric.14.5.2 Cut five specimens spaced uniformly across thefabric sample. No specimen shall be taken within 51 mm (2 in.)of any selvage edge of the fabric.14.5.3 Using an indelible marker, mark a 25-mm (1-in.)
26、border from each outside edge, forming a block that will beused for measurement purposes.14.6 ConditioningCondition the test specimens using theprocedures described in Practice D 1776.14.7 Procedure:14.7.1 Heat the silicone oil to approximately 274C(525F). Place the ladle in the oil to allow it to e
27、quilibrate andminimize excessive, rapid cooling of the oil prior to adding tothe test pans.4Silicone oil, available from Dow Corning Corp., South Saginaw Road,Midland, MI 48686, has been found suitable for this purpose.TABLE 1 Physical Properties of Thermoplastic Fabrics for Use in Hot-Applied Roofi
28、ng and WaterproofingPropertiesTypesI II III IVUnit mass, nominal, g/m2(oz/yd2) 155 (4.6) 140 (4.1) 125 (3.7) 327 (9.6)(lb/100 ft2) (3.2) (2.8) (2.6) (6.7)Thickness, mm (mils), min 0.42 (16) 0.51 (20) 0.41 (16) 0.92 (36)Breaking load, kN/m (lbf/in.), min, MD and CD 8.8 (50) 5.2 (30) 20.5 (117) 14.9 (
29、85)Elongation, % min, MD and CD 46 25 3.3 34Trapezoid tearing strength, N (lbf), min, MD and CD 155 (35) 107 (24) 31 (7) 256 (57)Puncture strength, N (lbf), min 231 (52) 169 (38) 53 (12) 316 (71)Appearance rating (AATCC Test Set No. 128), pass(4 and 5) and fail (1 to 3)Pass Pass Pass PassHeat distor
30、tion stability, % change max, MD and CD 2 2 0.2 2D 5726 98 (2005)214.7.2 Measure and record the original length and widthmeasurements of the bordered box pattern. Measure along eachline and at a midpoint in both directions to provide foraveraging of the measurements in both directions.14.7.3 Lay an
31、aluminum baking pan on top of the insulationboard.14.7.4 Remove a ladle full of silicone oil, and immerse thethermometer in the oil. When the temperature has dropped to260C (500F), pour quickly into the test pan.14.7.5 Within 3 s after pouring the oil, lay a fabric specimeninto the oil, placing one
32、end in the pan and rolling in theremaining length of the fabric.14.7.6 Take additional pans, and repeat the process de-scribed in 14.7.3 through 14.7.5 for the remaining fourspecimens.14.7.7 Once cooled to room temperature, remove the fabricspecimen from the test pan and place it on an absorbent tow
33、el,dabbing with additional absorbent towels to remove as muchexcess oil as possible.14.7.8 Rate and record the visual distortion and appearancerating of each specimen using AATCC Test Set No. 128. Anaverage can then be determined for the sample fabric.14.8 Calculation:14.8.1 Remeasure the dimensions
34、 of the outlined block foreach specimen as described in 14.7.2. Do not attempt to flattenor straighten the specimen for measurements.14.8.2 Using the initial and final (as tested) measurementsfor each specimen, determine the percent of shrinkage of thefabric sample as follows:% shrinkage length!5100
35、 3initial length 2 final lengthinitial length(1)% shrinkage width!5100 3initial width 2 final widthinitial width(2)14.9 Report:14.9.1 State that the tests were performed in accordancewith these specified test methods. Describe the material orproduct evaluated and sampling method used.14.9.2 Record t
36、he distortion appearance rating for each testspecimen as determined with AATCC Test Set No. 128, anddetermine the average.14.9.3 The tested fabric will be qualified on a pass/fail basis.If the average visual rating as determined withAATCC Test SetNo. 128 is found to be 4 or 5, the sample is consider
37、ed to besuitable for application as a hot-applied built-up ply reinforce-ment. The test sample is considered to have failed with a visualrating of 1 to 3.14.9.4 For fabrics that have passed the requirements givenin 14.9.3, record the percent shrinkage in both directions foreach specimen. Determine t
38、he respective averages, and reportthem as that samples percent shrinkage.14.10 Precision and Bias:14.10.1 PrecisionThe precision of the procedure in thistest method is being determined.14.10.2 BiasSince there is no accepted reference materialto determine the bias for the procedure in this test metho
39、d ofdetermining the heat distortion/stability of thermoplastic fab-rics for use in hot-applied built-up roofing, no bias statement isbeing made.15. Inspection15.1 InspectionInspection shall be in accordance with therequirements of this specification.15.2 Inspection AlternativesAlternative inspection
40、 re-quirements shall be determined by and as agreed upon betweenthe purchaser and the supplier.16. Rejection and Resubmittal16.1 Failure to ConformFailure to conform to any of therequirements as stated in this specification constitutes groundsfor rejection.16.2 Rejection RedressThe supplier shall ha
41、ve the right toinspect the rejected materials. The supplier and the purchasershall agree to the quantity of rolls deemed unacceptable. Thesupplier shall then have the right to submit the same number ofnew rolls as replacement.17. Packaging and Package Marking17.1 The rolls shall be wrapped or banded
42、 securely with asubstantial grade of paper, plastic wrap, or taping that encirclesthe roll in a manner that will prevent slipping or unraveling.17.2 No roll shall contain more than two pieces, and nomore than 3 % of the rolls in any lot (pallet or shipment) shallcontain two pieces. Pieces represent
43、roll ends that can be (1)individual and loose, (2) adhered, or (3) stitched to appear asone continuous piece. These rolls must be marked clearly witha red tag or other item to identify the location of the splice.17.3 Unless otherwise specified, each package shall bemarked plainly with the manufactur
44、ers or suppliers name,product or brand name, or both, and theASTM designation andtype.18. Keywords18.1 fiber glass scrim; hot-applied roofing and waterproof-ing; polyester/polyamide reinforcement; polyester reinforce-ment; thermoplastic fabricsD 5726 98 (2005)3ASTM International takes no position re
45、specting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This
46、 standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Inter
47、national Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown b
48、elow.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 5726 98 (2005)4
