ASTM D3937-12(2018)
Standard Test Method for Crimp Frequency of Manufactured Staple Fibers

Standard No.

ASTM D3937-12(2018)

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D3937-12(2018)

Scope

1.1 This test method covers the determination of the crimp frequency of manufactured staple fibers. This test method is applicable to all crimped staple fibers provided the crimp can be viewed two-dimensionally as a sine-wave configuration. 1.1.1 It should be recognized that yarn manufacturing processes or treatments to manufactured yarns can influence or modify crimp in fiber. Hence, the value for crimp of fibers taken from spun yarns may be different than that of the same fiber prior to the manufacturing or treatment processes. 1.2 Three options are provided for preparation of the specimens. Option One (preferred) uses single fibers for the specimens with a low magnification available, Option Two (optional for staple or tow samples) uses fiber chips as the specimens, and Option Three uses projected images of single fibers. 1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 D3937-12(2018) Referenced Document

• ASTM D123 Standard Terminology Relating to Textiles*， 2023-09-14 Update
• 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 D3937-12(2018) history

• 2018 ASTM D3937-12(2018) Standard Test Method for Crimp Frequency of Manufactured Staple Fibers
• 2012 ASTM D3937-12 Standard Test Method for Crimp Frequency of Manufactured Staple Fibers
• 2007 ASTM D3937-07 Standard Test Method for Crimp Frequency of manufactured Staple Fibers
• 2001 ASTM D3937-01 Standard Test Method for Crimp Frequency of Manufactured Staple Fibers
• 1994 ASTM D3937-94 Standard Test Method for Crimp Frequency of Manufactured Staple Fibers