ASTM D4830 D4830M-1998(2014)e1 Standard Test Methods for Characterizing Thermoplastic Fabrics Used in Roofing and Waterproofing《屋面覆盖和防水用热塑性织物特性的标准规范方法》.pdf
《ASTM D4830 D4830M-1998(2014)e1 Standard Test Methods for Characterizing Thermoplastic Fabrics Used in Roofing and Waterproofing《屋面覆盖和防水用热塑性织物特性的标准规范方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D4830 D4830M-1998(2014)e1 Standard Test Methods for Characterizing Thermoplastic Fabrics Used in Roofing and Waterproofing《屋面覆盖和防水用热塑性织物特性的标准规范方法》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D4830/D4830M 98 (Reapproved 2014)1Standard Test Methods forCharacterizing Thermoplastic Fabrics Used in Roofing andWaterproofing1This standard is issued under the fixed designation D4830/D4830M; the number immediately following the designation indicates theyear of original adoption or,
2、in the case 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.1NOTEUnits information was editorially corrected in May 2014.1. Scope1.1 These test methods c
3、over the procedures for character-izing thermoplastic fabrics (for example polyester, polyamide,polypropylene, and so forth) used in prefabricated roofing andwaterproofing membranes.1.2 Procedures appear in the following order:SectionUnit Mass 3Thickness 4Breaking Load, Elongation and Work-to-Break
4、5Trapezoid Tearing Strength 6Puncture Strength 7Static Heat Stability 8Dynamic Heat Stability 91.3 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 inde
5、pendently 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, 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:2D76 Specification for Tensile Testing Machines for TextilesD123 Terminology Relating to TextilesD885 Test Methods for Tire Cords, Tire Cord Fabrics, andIndustrial F
7、ilament Yarns Made from ManufacturedOrganic-Base FibersD1117 Guide for Evaluating Nonwoven Fabrics (Withdrawn2009)3D1776 Practice for Conditioning and Testing TextilesD4354 Practice for Sampling of Geosynthetics and RolledErosion Control Products(RECPs) for TestingD5035 Test Method for Breaking Forc
8、e and Elongation ofTextile Fabrics (Strip Method)D5729 Test Method for Thickness of Nonwoven Fabrics(Withdrawn 2008)3D5733 Test Method for Tearing Strength of NonwovenFabrics by the Trapezoid Procedure (Withdrawn 2008)3E1 Specification for ASTM Liquid-in-Glass ThermometersE18 Test Methods for Rockwe
9、ll Hardness of Metallic Ma-terials3. Unit Mass3.1 Determine the unit mass of the fabric using proceduresdescribed in Test Methods D1117. Report in g/m2or oz/yd2.4. Thickness4.1 Determine fabric thickness following procedures de-scribed in Test Method D5729.5. Breaking Load, Elongation, and Work-to-B
10、reak5.1 Determine the breaking load and elongation by the cutstrip method described in Test Method D5035 with the follow-ing exceptions:5.1.1 Test SpecimensCut each specimen 51 6 1 mm 2.06 0.05 in. wide and 203 6 1 mm 8.0 6 0.05 in. long. Thegauge length shall be 152 6 1 mm 6.0 6 0.05 in.5.1.2 Appar
11、atusThe apparatus shall be a CRE (ConstantRate of Extension) machine described in Specification D76.The machine will be set for an extension rate of 5 mm/s or 12in./min.5.2 CalculationReport textile conditions and the averagebreaking load in N/m or lbf/in. and the elongation at break inpercent.1Thes
12、e test methods are under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and are the direct responsibility of SubcommitteeD08.04 on Felts, Fabrics and Bituminous Sheet Materials.Current edition approved May 1, 2014. Published May 2014. Originallyapproved in 1988. Last previous edi
13、tion approved in 2006 as D4830 98 (2006).DOI: 10.1520/D4830_D4830M-98R14E01.2For 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 Summary page onth
14、e 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 States15.3 Work-to-BreakThe procedure and calculation shall beas described in Test Methods D88
15、5 with the exception that theload-elongation curve will be from specimens used in deter-mining breaking load and elongation as described in 5.1 and5.2.6. Trapezoid Tearing Strength6.1 Determine trapezoid tearing strength of the fabric fol-lowing procedures described in Test Method D5733.7. Puncture
16、Strength7.1 Scope:7.1.1 This test method is used to measure the puncturestrength of thermoplastic fabrics used in roofing.7.1.2 This procedure is applicable to conditioned fabrics.7.2 Summary of Method:7.2.1 A specimen of the fabric is clamped without tensionbetween grooved, circular plates of a rin
17、g clamp attachmentsecured in a tensile testing machine. A force is exerted againstthe center of the specimen by a solid steel rod attached to theload indicator until rupture occurs.7.3 Significance and Use:7.3.1 Puncture failures are recognized in the roofing indus-try. Puncture strength is felt to
18、reflect the fabrics ability towithstand aggregate or ballast stone penetration. This testmethod is used to obtain the relative puncture resistance ofvarious fabrics.7.4 Apparatus:7.4.1 Tensile Testing Machine, of the constant-rate-of exten-sion type (CRE), with autographic recorder conforming to the
19、requirements of Specification D76.7.4.2 Ring Clamp Attachment, consisting of concentricgrooved plates with an internal diameter of 44.45 6 0.025 mm1.750 6 0.001 in., capable of clamping fabrics withoutslippage.7.4.3 Solid Steel Rod, with a hardness in the range ofRockwell C (HRC) 50 to 60, with a di
20、ameter of 7.938 6 0.013mm 0.3125 6 0.0005 in. and a hemispherical end with aradius of 3.970 6 0.013 mm 0.1563 6 0.0005 in. forcontacting the fabric surface (see Fig. 1). The surface of thehemispherical end should be smooth and polished to a surfacesmoothness of RMS 8. (RMS is the root-mean-squaremet
21、hod of describing surface smoothness.)47.5 Sampling, Number of Specimens, and Selection ofSamples:7.5.1 Lot SampleAs a lot sample for acceptance testing,take at random the number of rolls of fabric directed in anapplicable material specification or other agreement betweenthe purchaser and the suppli
22、er, such as agreement to sample asdirected in Practice D4354. Consider rolls of fabric to be theprimary sampling units.7.5.2 Laboratory SampleTake, for the laboratory sample,a sample extending the width of the fabric and approximately1.0 m 39 in. along with the selvage from each roll in the lotsampl
23、e. The sample may be taken from the end portion of a rollprovided there is no evidence that it is distorted or differentfrom other portions of the roll. In cases of dispute, take asample that will exclude fabric from the outer wrap of the rollor the inner wrap around the core.7.5.3 Unless otherwise
24、agreed upon or specified in appli-cable material specifications, test a number of specimens fromeach laboratory sample that will give a precision of 65 % at aprobability level of 90 %, not to exceed ten specimens persample.7.6 Preparation of Test Specimen:7.6.1 Each specimen shall be cut 76 by 76 mm
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD4830D4830M19982014E1STANDARDTESTMETHODSFORCHARACTERIZINGTHERMOPLASTICFABRICSUSEDINROOFINGANDWATERPROOFING

链接地址:http://www.mydoc123.com/p-518146.html