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Description of ASTM-D2256 1997ASTM D2256-97Historical Standard: Standard Test Method for Tensile Properties of Yarns by the Single-Strand MethodASTM D2256Scope 1.1 This test method covers the determination of tensile properties of monofilament, multifilament, and spun yarns, either single, plied, or cabled with the exception of yarns that stretch more than 5.0% when tension is increased from 5 to 10 mN/tex (0.5 to 1.0 gf/tex). 1.2 This test method covers the measurement of breaking force and elongation of yarns and includes directions for the calculation of breaking tenacity, initial modulus, secant modulus, and breaking toughness. 1.2.1 Options are included for the testing of specimens in: (A) straight, (B) knotted, and (C) looped form. 1.2.2 Conditions of test are included for the testing of specimens that are:(1) conditioned air, (2) wet, not immersed, (3) wet, immersed, (4) oven-dried, (5) exposed to elevated temperature, or (6) exposed to low temperature. Note 1-Special methods for testing yarns made from specific fibers; namely, asbestos, glass, flax, hemp, ramie, and kraft paper and for specific products; namely, tire cords and rope, have been published: Test Method D 885, Specification D 299, and Specification D 578. Note 2-For directions covering the determination of breaking force of yarn by the skein method refer to Test Method D 1578. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Keywords breaking strength; elongation; yarns ICS Code ICS Number Code 59.080.20 (Yarns) DOI: 10.1520/D2256-97 The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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