ASTM D1445-05
Historical Standard: ASTM D1445-05 Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
SUPERSEDED (see Active link, below)
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 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D123 Terminology Relating to Textiles
D1294 Test Method for Tensile Strength and Breaking Tenacity of Wool Fiber Bundles 1-in. (25.4-mm) Gage Length
D1441 Practice for Sampling Cotton Fibers for Testing
D1447 Test Method for Length and Length Uniformity of Cotton Fibers by Fibrograph Measurement
D1776 Practice for Conditioning and Testing Textiles
D3025 Practice for Standardizing Cotton Fiber Test Results by Use of Calibration Cotton Standards
D5867 Test Methods for Measurement of Physical Properties of Cotton Fibers by High Volume Instruments
D7139 Terminology for Cotton Fibers
Keywords
breaking strength; cotton; elongation;
ICS Code
ICS Number Code 59.060.10 (Natural fibres)
DOI: 10.1520/D1445-05
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