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ASTM D3937-94

Historical Revision

Standard Test Method for Crimp Frequency of Manufactured Staple Fibers

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1.1 This test method covers the determination of the crimp frequency of manufactured staple fibers. This test method is applicable to all crimped 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 and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number D3937
Publication Date Sept. 10, 2001
Language en - English
Page Count 4
Revision Level 94
Supercedes
Committee D13.58
Publish Date Document Id Type View
Feb. 1, 2012 D3937-12 Revision
Jan. 1, 2007 D3937-07 Revision
Sept. 10, 2001 D3937-94 Revision
Sept. 10, 2001 D3937-01 Revision
July 1, 2024 D3937-12R24 Reaffirmation
July 1, 2018 D3937-12R18 Reaffirmation