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ASTM - D1445/D1445M

Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)

active, Most Current
Organization: ASTM
Publication Date: 1 March 2012
Status: active
Page Count: 8
scope:

This test method covers the determination of (1) the tensile strength or breaking tenacity of cotton fibers as a flat bundle using a nominal zero gauge length, or (2) the tensile strength or breaking tenacity and the elongation at the breaking load of cotton fibers as a flat bundle with 1/8-in. [3.2-mm] clamp spacing. This test method is applicable to loose ginned cotton fibers of untreated cottons whether taken before processing or obtained from a textile product.

This test method is designed primarily for use with special fiber bundle clamps and special strength testing instruments but may be used with other tensile strength and elongation testing machines when equipped with appropriate adapters to accommodate the fiber clamps.

NOTE 1-Other methods for measuring the breaking tenacity of fiber bundles include Test Method D1294, Test for Breaking Strength of Wool Fiber Bundles-1 in gauge Length;2 and D5867, Test Method for Measurement of Physical Properties of Cotton Fibers by High Volume Instruments.

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.

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.

2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard's Document Summary page on the ASTM website.

Document History

D1445/D1445M
March 1, 2012
Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
This test method covers the determination of (1) the tensile strength or breaking tenacity of cotton fibers as a flat bundle using a nominal zero gauge length, or (2) the tensile strength or breaking...
March 1, 2005
Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
This test method covers the determination of (1) the tensile strength or breaking tenacity of cotton fibers as a flat bundle using a nominal zero gage length, or (2) the tensile strength or breaking...
January 1, 1995
Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
1. Scope 1.1 This test method covers the determination of (1) the tensile strength or breaking tenacity of cotton fibers as a flat bundle using a nominal zero gage length, or (2) the tensile strength...
December 15, 1994
STANDARD TEST METHOD FOR BREAKING STRENGTH AND ELONGATION OF COTTON FIBERS (FLAT BUNDLE METHOD)
A description is not available for this item.
February 23, 1990
STANDARD TEST METHOD FOR BREAKING STRENGTH AND ELONGATION OF COTTON FIBERS (FLAT BUNDLE METHOD)
A description is not available for this item.
January 24, 1975
STANDARD TEST METHOD FOR BREAKING STRENGTH AND ELONGATION OF COTTON FIBERS (FLAT BUNDLE METHOD)
A description is not available for this item.

References

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