ASTM-D3822 2007

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D3822-07 Standard Test Method for Tensile Properties of Single Textile Fibers

Published By	Publication Date	Number of Pages
ASTM	2007	10

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Categories: 59.060.01 - Textile fibres in general, ASTM

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Description

1.1 This test method covers the measurement of tensile properties of natural and man-made single textile fibers of sufficient length to permit mounting test specimens in a tensile testing machine.

1.2 This test method is also applicable to continuous (filament) and discontinuous (staple) fibers or filaments taken from yarns or tow. When the fibers to be tested contain crimp, or if the tow or yarns have been subjected to bulking, crimping, or texturing process, the tensile properties are determined after removal of the crimp.

Note 1Testing of filaments taken from yarns or tow, included in this test method was originally covered in Test Method D 2101, that is discontinued.

1.3 The words ‘fiber’ and ‘filament’ are used interchangeably throughout this test method.

1.4 This test method is also applicable to fibers removed from yarns, or from yarns processed further into fabrics. It should be recognized that yarn and manufacturing processes can influence or modify the tensile properties of fibers. Consequently, tensile properties determined on fibers taken from yarns, or from yarns that have been processed into fabrics, may be different than for the same fibers prior to being subjected to yarn or fabric manufacturing processes.

1.5 This test method provides directions for measuring the breaking force and elongation at break of single textile fibers and for calculating breaking tenacity, initial modulus, chord modulus, tangent modulus, tensile stress at specified elongation, and breaking toughness.

1.6 Procedures for measuring the tensile properties of both conditioned and wet single fibers are included. The test method is applicable to testing under a wide range of conditions.

1.7 As the length of the test specimen decreases, the tensile strength is likely to increase, but the accuracy of the tensile properties determined may decrease, which may require the need to increase the number of test specimens. This is particularly true for those properties dependent on the measurement of elongation, since the shorter lengths increase the relative effect of slippage and stretching of the test specimens within the jaws of either clamp.

1.8 The values stated in either acceptable metric units or in other units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.

1.9 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 TABLE 1
3	Apparatus and Reagents Sampling TABLE 2 TABLE 3
4	Preparation of Test Specimens Preparation of Test Apparatus Conditioning Procedure
5	Calculation
6	Report TABLE 4 TABLE 5
7	Precision and Bias Keywords A1. TABBING TECHNIQUE FOR FIBER A1.1 Scope A1.2 Summary of Tabbing Technique
8	A1.3 Materials A1.4 Specimen Preparation A2. EFFECTIVE SPECIMEN LENGTH A2.1 A2.2 FIG. A2.1
9	A2.3 X1. INITIAL MODULUS X1.1 X1.2 FIG. X1.1
10	X2. CHORD MODULUS X2.1 FIG. X1.2 FIG. X2.1

Additional information

Standard Title	D3822-07 Standard Test Method for Tensile Properties of Single Textile Fibers
Published Code	ASTM
Publication Date	2007
Pages Count	10
ICS Codes	59.060.01 - Textile fibres in general

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ASTM-D3822 2007

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