ISO 5834-5:2025

International
Standard
ISO 5834-5
Third edition
Implants for surgery — Ultra-high-
2025-07
molecular-weight polyethylene —
Part 5:
Morphology assessment method
Implants chirurgicaux — Polyéthylène à très haute masse
moléculaire —
Partie 5: Méthode d'évaluation de la morphologie
Reference number
© ISO 2025
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test method . 2
4.1 General description .2
4.2 Sampling and test specimens .2
4.2.1 General .2
4.2.2 Procedure .2
4.3 Test report .3
Annex A (informative) Examples of type A and type B non-fused flakes . 4
Bibliography . 6

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 150, Implants for surgery, Subcommittee SC 1,
Materials.
This third edition cancels and replaces the second edition (ISO 5834-5:2019), which has been technically
revised.
The main changes are as follows:
— the normative references have been updated;
— updates have been made to harmonize this document with ASTM F648-21
— Figures 1 and Figure 2 have been moved to Annex A.
A list of all parts in the ISO 5834 series can be found on the ISO website.
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iv
Introduction
While no known surgical implant material has ever been shown to cause absolutely no adverse reactions
in the human body, long-term clinical experience with the material referred to in this document has shown
that an acceptable level of biological response can be expected when the material is used in appropriate
applications. However, this document covers the raw material and unfinished me
...