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ASTM D2256-02

Current Revision

Standard Test Method for Tensile Properties of Yarns by the Single-Strand Method

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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 0.05 to 1.0 cN/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, chord 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, glass, flax, hemp, ramie, and kraft paper and for specific products; namely, tire cords and rope, have been published: Test Method D 885, 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.


SDO ASTM: ASTM International
Document Number D2256
Publication Date Sept. 10, 2002
Language en - English
Page Count 12
Revision Level 02
Supercedes
Committee D13.58
Publish Date Document Id Type View
Sept. 10, 2002 D2256-02 Revision
Jan. 10, 1997 D2256-97 Revision
July 1, 2008 D2256-02R08 Reaffirmation