ASTM D 1422/D1422M : 2013 : REDLINE
Current
The latest, up-to-date edition.
Standard Test Method for Twist in Single Spun Yarns by the Untwist-Retwist Method
English
01-07-2013
CONTAINED IN VOL. 07.01, 2015 Defines the determination of twist in single spun yarns when only an approximation of the true twist is required.
Committee |
D 13
|
DevelopmentNote |
Supersedes ASTM D 1422. (08/2013)
|
DocumentType |
Redline
|
Pages |
7
|
PublisherName |
American Society for Testing and Materials
|
Status |
Current
|
1.1This test method2 describes the determination of twist in single spun yarns when only an approximation of the true twist is required.
1.2This test method is applicable to spun single yarns in continuous lengths, and also to spun yarns raveled from fabrics, provided specimens at least 200 mm [8 in.] long can be obtained.
1.3This test method has been found satisfactory for use in determining the approximate twist content in single ring spun yarns of all types and fiber contents, but not in open-end spun yarns.
1.4This specification shows the values in both inch-pound units and SI units. The “inch-pound” units is the technically correct name for the customary units used in the United States. The “SI” units is the technically corrected name for the system of metric units known as the International System of Units. 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.
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ASTM D 5446 : 2008 | Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints |
ASTM D 2258 : 1999 | Standard Practice for Sampling Yarn for Testing |
ASTM D 3888 : 2015 : REDLINE | Standard Terminology for Yarn Spinning Systems |
ASTM D 1059 : 2017 | Standard Test Method for Yarn Number Based on Short-Length Specimens |
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