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ASTM-D1445:2005 Edition

ASTM-D1445:2005 Edition

$40.63

D1445-05 Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)

Published By Publication Date Number of Pages
ASTM 2005 8
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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 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 fibers of untreated cottons whether taken before processing or obtained from a textile product.

1.2 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. 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; and D 5867, Test Method for Measurement of Physical Properties of Cotton Fibers by High Volume Instruments.

1.3 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.

PDF Catalog

PDF Pages PDF Title
1 Scope
2 Referenced Documents
Terminology
Summary of Test Method
Significance and Use
Apparatus and Materials
3 Sampling
Preparation, Calibration, and Verification of Apparatus
Conditioning
Preparation of Specimens
Procedure
4 Calculation
5 Report
Precision and Bias
Keywords
TABLE 1
TABLE 2
6 X1. DESCRIPTION AND ADJUSTMENT OF COTTON FIBER STRENGTH INSTRUMENTS
X1.1 Pressley Apparatus
X1.2 Stelometer Apparatus
7 FIG. X1.1
FIG. X1.2
8 X2. SUGGESTED WORKSHEET FOR USING STANDARD CALIBRATION STANDARDS
TABLE X2.1

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