ASTM_D_3107_-_07_2015.pdf

Designation:D310707(Reapproved 2015)Standard Test Methods forStretch Properties of Fabrics Woven from Stretch Yarns1This standard is issued under the fixed designation D3107;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript 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.Scope1.1 These test methods cover the determination of theamount of fabric stretch,fabric growth,and fabric recovery offabrics woven in whole or in part from stretch yarns after aspecified tension and extension.1.2 These test methods are intended for use with wovenfabrics exhibiting high stretch(greater than 12 percent)andgood recovery properties from low tension(up to 360 g/cm or2 lb/in.of fabric width).When agreed upon,these test methodscan be used for fabrics woven in whole or in part fromnon-stretch yarns that exhibit limits within the stretch charac-teristics shown above.1.3 These test methods allow the use of two tension optionscommonly used in the textile industry;1.35 kg(3 lb)and 1.8kg(4 lb).Several calculations are included for fabric stretch,fabric growth and fabric recovery,and can be used individuallywhen required by individual specifications.1.4 These test methods should not be used to measurebreaking elongation of woven fabrics which is covered in TestMethod D5035.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as the standard.Within the text,the inch-pound units are shown in parentheses.The valuesstated in each system are not exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the specification.1.6 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD2904 Practice for Interlaboratory Testing of a Textile TestMethod that Produces Normally Distributed Data(With-drawn 2008)3D2906 Practice for Statements on Precision and Bias forTextiles(Withdrawn 2008)3D4848 Terminology Related to Force,Deformation andRelated Properties of TextilesD4849 Terminology Related to Yarns and FibersD4850 Terminology Relating to Fabrics and Fabric TestMethodsD5035 Test Method for Breaking Force and Elongation ofTextile Fabrics(Strip Method)3.Terminology3.1 For all terminology related to Fabric,refer to Terminol-ogy D4850.3.2 For all terminology related to Yarns and Fiber,refer toTerminology D4849.3.3 For all terminology related to Force,Deformation andRelated Properties of Textiles,refer to Terminology D48483.3.1 The following terms are relevant to this standard:bench marks,fabric stretch,fabric growth,stretch yarn,tension3.4 For all other terminology related to textiles,refer toTerminology D123.4.Summary of Test Methods4.1 Fabric Stretch under a Specified TensionBench marksof a known distance are made on a fabric specimen.Aspecifiedtension is applied to a fabric specimen by a prescribedtechnique and the resulting distance between bench markswhile the specimen is under the tension is measured.The fabric1These test methods are under the jurisdiction of ASTM Committee D13 onTextiles and are the direct responsibility of Subcommittee D13.59 on Fabric TestMethods,General.Current edition approved July 1,2015.Published September2015.Originally approved in 1975.Last previous edition approved in 2011 asD310707(2011).DOI:10.1520/D3107-07R15.2For 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 onthe 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 States1 stretch is calculated from the length difference between benchmarks prior to application of the tension and while under thetension.4.2 Fabric Growth after a Specified TensionBench marksof a known distance are made on a fabric specimen.Aspecifiedtension is applied to a fabric specimen by a prescribedtechnique.The tension is removed and after various timeintervals,the relaxed distance between the bench marks isremeasured.The fabric growth is calculated from the lengthdifference between the bench marks prior to application of thetension and after relaxation.4.3 FabricGrowthafterStretchingtoaSpecifiedExtensionBench marks of a known distance are ma