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ASTM D 1423/D1423M : 2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Twist in Yarns by Direct-Counting
Available format(s)

Hardcopy , PDF

Superseded date

03-24-2022

Language(s)

English

Published date

10-20-2016

1.1 This test method covers the determination of the amount and direction of twist at the completion of any stage of twisting in single (spun or filament), plied, cabled, or novelty (exclusive of long-term repeat patterns) yarns.

1.1This test method covers the determination of the amount and direction of twist at the completion of any stage of twisting in single (spun or filament), plied, cabled, or novelty (exclusive of long-term repeat patterns) yarns. The procedures are designed primarily for yarns in packages, but, with special precautions, they are applicable to yarns taken from fabrics. The procedure for spun yarn in 9.2 is also applicable to rovings.

1.2For plied yarns, this test method covers the determination of the twist of the plied yarns and the twist of the single yarn before plying. For cabled yarns, the test method covers the determination of the cable or hawser twist; the twist of the plied yarn after plying, but prior to the last twisting operation; and the twist of the single yarn before plying. Procedures are also included for the determination of the twists of the single and plied yarn components as they lie in the final structure. Also, directions are included for the determination of twist in plied yarn made with direct cabling technology.

1.3This test method is not intended for yarns that extend more than 5.0 % when tension is increased from 2.5 to 7.5 mN/tex [0.25 to 0.75 gf/tex]. Following the procedures of this test method for such yarns would be independent of the bias and precision determined for this test method. The report from such testing should include the tension used for this testing.

1.4Units—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.

Note 1:For a more rapid but less accurate method of determining twist in single spun yarns, refer to Test Method D1422.

Note 2:This test method has been evaluated for use in determining twist in open end yarns and is not recommended.

1.5This 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.

Committee
D 13
DocumentType
Test Method
Pages
7
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 2645 : 2007 : R2018 Standard Tolerances for Yarns Spun on the Cotton or Worsted Systems
ASTM D 2644 : 2012 : R2018 Standard Tolerances for Yarns Spun on the Woolen System
ASTM D 2497 : 2007 : R2018 Standard Tolerances for Manufactured Organic-Base Filament Single Yarns
ASTM D 204 : 2002 : R2021 Standard Test Methods for Sewing Threads
ASTM D 578/D578M : 2018 Standard Specification for Glass Fiber Strands

ASTM D 1907 : 1997 Standard Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
ASTM D 4849 : 2013 : EDT 3 Standard Terminology Related to Yarns and Fibers
ASTM D 3888 : 2007 Standard Terminology for Yarn Spinning Systems
ASTM D 4849 : 2020 Standard Terminology Related to Yarns and Fibers
ASTM D 1059 : 1997 Standard Test Method for Yarn Number Based on Short-Length Specimens
ASTM D 1907 : 2007 Standard Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
ASTM D 1907 : 2001 Standard Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
ASTM D 4849 : 2013 : EDT 2 Standard Terminology Related to Yarns and Fibers
ASTM D 4849 : 2002 : REV A Standard Terminology Relating to Yarns and Fibers
ASTM D 1776 : 1998 : EDT 1 Standard Practice for Conditioning and Testing Textiles
ASTM D 4849 : 2013 : R2018 Standard Terminology Related to Yarns and Fibers
ASTM D 4849 : 2002 : REV B Standard Terminology Relating to Yarns and Fibers
ASTM D 1776 : 1967 : EDT 1 Standard Method Of Conditioning Textiles And Textile Products For Testing
ASTM D 3888 : 1995 Standard Terminology Relating to Open-End Spinning
ASTM D 4849 : 2002 : REV B : R2007 : EDT 2 Standard Terminology Related to Yarns and Fibers
ASTM D 4849 : 2002 : REV B : EDT 1 Standard Terminology Relating to Yarns and Fibers
ASTM D 1422 : 1999 : R2008 Standard Test Method for Twist in Single Spun Yarns by the Untwist-Retwist Method
ASTM D 4849 : 2002 : REV B : R2007 : EDT 1 Standard Terminology Related to Yarns and Fibers
ASTM D 1059 : 2001 Standard Test Method for Yarn Number Based on Short-Length Specimens (Withdrawn 2010)
ASTM D 3888 : 2012 Standard Terminology for Yarn Spinning Systems
ASTM D 1776 : 2004 Standard Practice for Conditioning and Testing Textiles
ASTM D 3888 : 2015 Standard Terminology for Yarn Spinning Systems
ASTM D 1776 : 2008 : EDT 1 Standard Practice for Conditioning and Testing Textiles
ASTM D 1776 : 2008 Standard Practice for Conditioning and Testing Textiles
ASTM D 1059 : 2017 Standard Test Method for Yarn Number Based on Short-Length Specimens
ASTM D 4849 : 2021 Standard Terminology Related to Yarns and Fibers
ASTM D 3888 : 2007 : EDT 1 Standard Terminology for Yarn Spinning Systems
ASTM D 4849 : 2002 : REV B : R2007 Standard Terminology Relating to Yarns and Fibers
ASTM D 123 : 2001 Standard Terminology Relating to Textiles
ASTM D 4849 : 2013 Standard Terminology Related to Yarns and Fibers
ASTM D 4849 : 2002 : REV B : R2007 : EDT 3 Standard Terminology Related to Yarns and Fibers
ASTM D 4849 : 2013 : EDT 1 Standard Terminology Related to Yarns and Fibers
ASTM D 1422 : 1999 Standard Test Method for Twist in Single Spun Yarns by the Untwist-Retwist Method

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