What is ISO 24497-2 about?
ISO 24497-2 is the second part of an international multi-series standard that covers testing methods for metals.
ISO 24497-2 specifies general requirements for the application of the non-destructive (NDT) metal magnetic memory (MMM) testing technique of the magnetic testing method for quality assurance of welded joints. It specifies basic principles, requirements for the inspected object, testing equipment requirements, preparation for testing, test procedure as well as the processing of test results for non-destructive testing by metal magnetic memory.
Note: ISO 24497-2 can be applied to welded joints in any type of ferromagnetic product like pipelines, vessels, equipment, and metal constructions, as agreed with the purchaser.
Who is ISO 24497-2 for?
ISO 24497-2 on non-destructive testing by metal magnetic memory is applicable to:
- Testing laboratories for metals
- Construction, automotive, mechanical Industries
- Sheet metal manufacturers
- Manufacturers of pressure vessels
- Manufacturers of aircraft & aerospace
Why should you use ISO 24497-2?
The Metal Magnetic Memory method is a testing technique that tests the metals externally without damaging the product. It is mostly used for investigating the defects and regions of high stress, as well as for the assessment of the stress history of an element.
ISO 24497-2 discusses the guidelines for the non-destructive testing (NDT) technique by metal magnetic memory (MMM). It could help you in determining the locations with magnetic stray field aberrations for further microstructural analysis and/or non-destructive testing and evaluation.
Users of ISO 24497-2 can benefit from it, for early diagnostics of fatigue damage of the inspected object and evaluation of its structural lifespan. It helps in the quick sorting of new and used inspection objects by their magnetic heterogeneity for further testing.
ISO 24497-2 helps you in improving the efficiency 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.
What’s changed since the last update?
BS ISO 24497-2:2020 supersedes BS ISO 244973:2007, which is withdrawn. BS ISO 24497-2:2020 includes some technical changes as follows:
- Clauses 2 and 3 have been updated and Clause 4 has been modified
- The scope has been modified, MMM is a technique of the MT method
- Clauses 5, 6 and 7 have been replaced by references to ISO 244971
- Figures and annexes have been modified for more exact descriptions