ISO 24497-1:2020
Non-destructive testing - Metal magnetic memory - Part 1: Vocabulary and general requirements
This document specifies terms and definitions for non-destructive testing (NDT) by the technique of metal magnetic memory (MMM) as well as general requirements for application of this technique of the magnetic testing method.The terms specified in this document are mandatory for application in all types of documentation and literature of non-destructive testing, using the metal magnetic memory technique.This NDT technique has the following objectives:— determination of the heterogeneity of the magneto-mechanical state of ferromagnetic objects, detection of defect concentration and boundaries of metal microstructure heterogeneity;— determination of locations with magnetic stray field aberrations for further microstructural analysis and/or non-destructive testing and evaluation;— early diagnostics of fatigue damage of the inspected object and evaluation of its structural life time;— quick sorting of new and used inspection objects by their magnetic heterogeneity for further testing;— efficiency improvement of non-destructive testing by combining metal magnetic memory testing with other NDT methods or techniques (ultrasonic testing, x-ray, etc.) by fast detection of the most probable defect locations;— quality control of welded joints of various types and their embodiment (including contact and spot welding). See ISO 24497-2 for details of this application.
This document specifies terms and definitions for non-destructive testing (NDT) by the technique of metal magnetic memory (MMM) as well as general requirements for application of this technique of the magnetic testing method.
The terms specified in this document are mandatory for application in all types of documentation and literature of non-destructive testing, using the metal magnetic memory technique.
This NDT technique has the following objectives:
— determination of the heterogeneity of the magneto-mechanical state of ferromagnetic objects, detection of defect concentration and boundaries of metal microstructure heterogeneity;
— determination of locations with magnetic stray field aberrations for further microstructural analysis and/or non-destructive testing and evaluation;
— early diagnostics of fatigue damage of the inspected object and evaluation of its structural life time;
— quick sorting of new and used inspection objects by their magnetic heterogeneity for further testing;
— efficiency improvement of non-destructive testing by combining metal magnetic memory testing with other NDT methods or techniques (ultrasonic testing, x-ray, etc.) by fast detection of the most probable defect locations;
— quality control of welded joints of various types and their embodiment (including contact and spot welding). See ISO 24497-2 for details of this application.
ISO 24497-1:2007 specifies terms and definitions for procedures in the sphere of non-destructive testing by the method of metal magnetic memory. The terms specified in ISO 24497-1:2007 are mandatory for application in all types of documentation and literature in the sphere of non-destructive testing, using the method of metal magnetic memory included in the scope of standardization works and/or using the results of these works.
ISO 24497-2:2007 specifies general requirements for the application of the method of metal magnetic memory of components, units, equipment, and structures for various application purposes. It covers non-destructive testing.
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ