ASTM_D_2262_-_83_scan.pdf

ACCEPTANCE NOTICE ASTX D 2262-83 22 June 1981j USED INSTEAD Of Method 5134 of fED-STD-191A July 20,1978 This non-Government document was adopted(with the exception listed below)on 22 June 1984 and is approved for use by the DoD,The indicated industry group has furnished the clearance required by existing regulations.Copies of the document are stocked by the DoD Single Stock Point,Naval Publications and forms Center,Philadelphia,PA 19120,for issue to DoD activities only,Contractors and Industry groups must obtain copies directly from ASTM,1916 Race Street,Philadelphia,PA 19103.TITLE OF DOCUMENT:Tearing Strength of Woven Fabrics by the Tongue(Single Rip)Method(Constant-Rate-of-Traverse Tensile Testing Machine)DATE OF SPECIFIC ISSUE ADOPTED:25 February 1983 RELEASING INDUSTRY GROUP:American Society for Testing and Materials NOTICE:nen reaffirmation,amendment,revision,or cancellation of this standard is initially proposed,the industry group responsible for this standard,shall inform the military coordinating activity of the proposed change and request their participation.EXCEPTION:For Air Force life support contracts,paragraphs 5.5 and 5.5.1 of this ASTH method shall not apply.Custodians:Army-GL Navy-1.11 Air Force-20.Review activities:Army-MD,MI,TE Navy-AS Air Force-03,82,99 DLA-CT User activities:Army-ME Navy-eG,MC,SH Military Coordinating Activity:Army-GL(Project No.83GP-0354)=-,THIS DOCUMENT CONTAINS _ PAGES.NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.l Designation:D 2262-83 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race St.,Philadelphia,Pa.19103 Reprinted from the Annual Book of ASTM Standards.Copyright ASTM If not listed in the current combined index.will appear in the next edition.Standard Test Method for TEARING STRENGTH OF WOV,EN FABRICS BY THE TONGUE.(SINGLE RIP)METHOD(CONSTANT-RATE-OF-TRAVERSE TENSILE TESTING MACHINE1 This stana.rd is issue unde the fIXed desigtion D 2262;the nume.r immediately following the desination indicates the year of ongmal adoptIOn or,10 the case of reVISion,the year oflast reVISIon.A number In parentheses indicates the year oflast reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope 1.1 This method covers the determination of tearing strength by the tongue(single rip)method,using a constant-rate-of-traverse(CRT)(pendulum)tensile testing machine with an autographic recorder.NOTE I-For another method of determining the tearin&strength of fabrics using a constant-rate-of-extension tensile testing machine refer to Method D 2261,Test for Tearing Strength of Woven Fabrics by the Tongue(Single Ri Method(Constant-Rate-of-Extension Tensile Testmg Machine,2 1.2 The method is applicable to treated and untreated woven fabrics provided the fabric does not tear during the test in the direction crosswise to the direction of the force applied.If the tear is not substantially lengthwise,the fabric shall be described as untearable in that direction by this test.1.3 Tearing strength as measured in this method is the force required to continue or propagate a tear started previously in the spec-imen.The reported value includes the force required to shift yams and to break one or more yarns at the same time.The reported value is not directly related to the force required to initiate or start a tear.104 The values stated in SI units are to be regarded as the standard.The metric equivalents or u.s.customary units may be approximate.2.Applicable Documents 2.1 ASTM Standards:D 76 Specification for Tensile Testing Ma-chines for Textiles2 D 123 Defmitions of Terms Relating to Tex-tiles2 D 1776 Practice for Conditioning Textiles for Testing2 3.Definitions 3.1 tearing strength.n.-the force required either(1)to start or(2)to continue or propa-gate a tear in a fabric under specified condi-tions.3.2 tearing strength tests for filling yarns-tests in which the ftlIing yarns are broken.3.3 tearing strength testsfor warp yarns-tests in which the warp yams are broken.3.4 peak load-the.load required to break one or more yams and registered on the chart as a peak,that is,a value exceeding the values immediately preceding and following it.3.4.1 If a small decrease in load occurs at a time when the load is increasing,it is not considered to be a peak unless the indicated load exceeds the load required to break a yam.Lower shifts corresponding to yam movements do not qualify as peaks since no yams are broken.I This method is under the jurisdiction of ASTM Committee 0-13 on Textiles.and is the direct responsibility ofSubcommit-tee 013.:59 on Fabric Test Methods.General.Current edition approved Feb.25.1983,Published June 1983.Originally issued 1964.Replaces 0 2262-64 T.last pre-vious edition 02262-71(1916).1983 Annl/al Book of ASTM Standards.Vol 07.01.3.5 For defmitions of other textile terms used in this method,refer to Defmitions D 123.4.Su