This standard is issued under the fixed designation F2009; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (ε) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1

This test method establishes a standard methodology for determining the force required, under laboratory conditions, to disassemble tapers of implants that are otherwise not intended to release. Some examples are the femoral components of a total or partial hip replacement or shoulder in which the head and base component are secured together by a self-locking taper.

1.2

This test method has been developed primarily for evaluation of metal and ceramic head designs on metal tapers but may have application to other materials and designs.

1.3

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

2.1

3. Summary of Test Method

3.1

3.2

4. Significance and Use

4.1

4.2

4.3

5. Apparatus

5.1

5.2

5.3

5.4

6. Sampling and Test Specimens

6.1

6.2

6.3

6.4

7. Procedure

7.1

7.2

7.3

7.4 Disassembly Procedure

7.5

8. Report

8.1

9. Precision and Bias

9.1

9.2

10. Keywords

10.1

ASTM F2009 - 20

Standard Test Method for Determining the Axial Disassembly Force of Taper Connections of Modular Prostheses

Published:

1 Mar 2020

Withdrawn:

29 Jan 2026