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2. Theoretical aspects of the method
Magnetic particle testing involves complex magnetic phenomena which, to be properly presented, would require explanations that go beyond the somewhat simplified presentation given in this chapter. The aim of this presentation is to give readers a clear understanding of the important aspects of the magnetic particle testing method, without entering into abstract theoretical demonstrations that are too far removed from the method itself.
2.1 Physical quantities and units
We need to distinguish between two different magnetic quantities which do not have the same meaning: magnetic field and magnetic flux density (figure
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Bibliography
- (1) - Software package Finite Element Method Magnetics (FEMM) - http://www.femm.info/wiki/HomePage.
- (2) - NIKOLAYEVICH ZATSEPIN (N.) - Calculation of the magnetostatic field of surface...
Websites
NDT Resource Center, Center for Nondestructive Evaluation, Iowa State University, Ames, Iowa 50011, USA. Introduction to Magnetic Particle testing:
https://www.nde-ed.org/NDETechniques/MagParticle/index.xhtml
CHEMIN Pierre and DUBOSC Patrick – 190 articles on penetrant testing and magnetic...
Events
COFREND Days (French Confederation for Non-Destructive Testing) take place every three years in a French city chosen by COFREND. Those celebrating COFREND's 50th anniversary took place from May 30 to 1 er June 2017 at the Palais des Congrès in Strasbourg. The COFREND 2020 Days were cancelled due to the health and economic context, which had a strong impact on event activities in France....
Standards and norms
- Non-destructive testing – Terminology – Part 1: List of general terms - EN 1330-1 - 2015
- Non-destructive testing – Terminology – Part 2: Terms common to the non-destructive testing methods - EN 1330-2 - 1999
- Non-destructive testing – Magnetic particle testing – Vocabulary - ISO 12707 - 2016
- Non-destructive testing – Magnetic particle testing – Part 1: General principles - ISO 9934-1 - 2017 ...
Regulations
Council Directive 67/548/EEC of 27 June 1967 on the approximation of laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances (Official Journal of the European Union 167 of August 16, 1967).
Directive 2004/42/EC of April 21, 2004 on the limitation of emissions of volatile organic compounds due to the use of organic solvents in certain...
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Statistical, economic and human data
1. COFREND certification (COFREND sources – https://www.cofrend.com )
Magnetic particle testing is the third NDT method (behind penetrant testing and ultrasonic testing) with the highest number of certified agents. The results for 2020 are as follows.
The statistics...
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