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

Standard No.

ASTM D1445-05

Release Date

2005

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1445/D1445M-12

Latest

ASTM D1445/D1445M-12(2021)

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.

ASTM D1445-05 Referenced Document

• ASTM D123 Standard Terminology Relating to Textiles
• ASTM D1294 Standard Test Method for Tensile Strength and Breaking Tenacity of Wool Fiber Bundles 1-in. (25.4-mm) Gage Length
• ASTM D1441 Standard Practice for Sampling Cotton Fibers for Testing
• ASTM D1447 Standard Test Method for Length and Length Uniformity of Cotton Fibers by Fibrograph Measurement
• ASTM D1776 Standard Practice for Conditioning and Testing Textiles
• ASTM D3025 Standard Practice for Standardizing Cotton Fiber Test Results by Use of Calibration Cotton Standards
• ASTM D5867 Standard Test Methods for Measurement of Physical Properties of Cotton Fibers by High Volume Instruments
• ASTM D7139 Standard Terminology for Cotton Fibers

ASTM D1445-05 history

• 2021 ASTM D1445/D1445M-12(2021) Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
• 2012 ASTM D1445/D1445M-12 Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
• 2005 ASTM D1445-05 Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
• 1995 ASTM D1445-95 Standard Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method) (Withdrawn 2004)