ASTM D3822/D3822M-14(2020)
Standard Test Method for Tensile Properties of Single Textile Fibers

Standard No.

ASTM D3822/D3822M-14(2020)

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D3822/D3822M-14(2020)

Scope

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 1—Testing of filaments taken from yarns or tow, included in this test method was originally covered in Test Method D2101, 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 SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D3822/D3822M-14(2020) Referenced Document

• ASTM D123 Standard Terminology Relating to Textiles*， 2023-09-14 Update
• ASTM D1577 Standard Test Methods for Linear Density of Textile Fibers
• ASTM D1776 Standard Practice for Conditioning and Testing Textiles
• ASTM D2258 Standard Practice for Sampling Yarn for Testing
• ASTM D3333 Standard Practice for Sampling Manufactured Staple Fibers, Sliver, or Tow for Testing
• ASTM D4849 Standard Terminology Related to Yarns and Fibers*， 2021-06-15 Update
• ASTM D629 Standard Test Methods for Quantitative Analysis of Textiles
• ASTM D76 Standard Specification for Tensile Testing Machines for Textiles
• ASTM E178 Standard Practice for Dealing With Outlying Observations

ASTM D3822/D3822M-14(2020) history

• 2020 ASTM D3822/D3822M-14(2020) Standard Test Method for Tensile Properties of Single Textile Fibers
• 2014 ASTM D3822/D3822M-14 Standard Test Method for Tensile Properties of Single Textile Fibers
• 2007 ASTM D3822-07 Standard Test Method for Tensile Properties of Single Textile Fibers
• 2001 ASTM D3822-01 Standard Test Method for Tensile Properties of Single Textile Fibers
• 1996 ASTM D3822-96 Standard Test Method for Tensile Properties of Single Textile Fibers