ASTM-D2256 2010

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D2256/D2256M-10 Standard Test Method for Tensile Properties of Yarns by the Single-Strand Method

Published By	Publication Date	Number of Pages
ASTM	2010	13

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Categories: 59.080.20 - Yarns, ASTM

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Description

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 1Special 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 Methods D885 , and Specification D578 .

Note 2For directions covering the determination of breaking force of yarn by the skein method refer to Test Method D1578 .

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use
3	Apparatus and Reagents
4	Sampling Conditioning of Specimens Rate of Operation and Gage Length Configurations of Test Specimens
5	Testing Conditions Measurement of Tensile Properties
6	Breaking Force Breaking Tenacity Elongation Initial Modulus Chord Modulus Breaking Toughness
7	Average Values Report Precision and Bias
8	Keywords TABLE 1
9	TABLE 2
10	TABLE 3
11	A1. DIRECTION OF KNOTS A1.1 A1.2 A1.3 X1. INITIAL MODULUS X1.1 X1.2 FIG. A1.1 FIG. A1.2
12	FIG. X1.1 FIG. X1.2
13	X2. CHORD MODULUS X2.1 FIG. X2.1

Additional information

Standard Title	D2256/D2256M-10 Standard Test Method for Tensile Properties of Yarns by the Single-Strand Method
Published Code	ASTM
Publication Date	2010
Pages Count	13
ICS Codes	59.080.20 - Yarns

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ASTM-D2256 2010

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