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ASTM D 1445 Document Information:
Title
Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
ASTM International
Publication Date:
Mar 1, 2005
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 gage length, or
(2) the tensile strength or
breaking tenacity and the elongation at the breaking load of cotton
fibers as a flat bundle with
⅛-in. (3.2-mm) clamp spacing. This test method is applicable to
loose 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 D
1294, Test for Breaking Strength of Wool Fiber Bundles - 1 in gage
Length;(Footnote 2) and D 5867,
Test Method for Measurement of Physical Properties of Cotton Fibers by
High Volume Instruments.
The values stated in either acceptable metric units or in other units
shall be regarded separately
as standard. The values expressed in each system may not be exact
equivalents; therefore, each
system must be used independently of each other, without combining
values in any way.
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.
Footnote 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.
Keywords:
- breaking strength
- cotton
- elongation
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