ASTM E1444/E1444M, “Standard Practice for Magnetic Particle Testing,” has just been updated. The new 2016 Edition replaces the previous 2012 Edition which is now obsolete. And, as noted in my previous posts, the standard is the replacement for the obsolete MIL-STD-1949 (withdrawn in 1993). It describes a particle testing method used to detect cracks and other dicontinuities on or near the surface of ferromagnetic materials (like iron, nickel and cobalt).
The ASTM E1444/E1444M can be used on materials in a wide variety of states. It can be raw material, billets, finished material, welds and in-service parts. It relies on the magnetic properties of ferromagnetic materials as the basis of the test. You magnetize the area you want to test, apply prepared magnetic particles, and then monitor the resulting particle accumulations for your results. The standard defines the basic parameters for controlling your application of the particles. It does not tell you the procedure to use for your specific testing equipment.
While normally an ASTM committee will provide you with a guide to the areas of an update that have been revised, in this new 2016 Edition there is no such paragraph. So you may want to purchase the redline edition in order to get both a clean copy of the 2016 update and a “marked-up” copy of the previous 2012 Edition showing the exact changes.
You’ll find revisions in the reference standards section, where a new ASTM recommended practice has been added to the list. Section 5 has changes reflecting use of the new document. And the quality control section has also been updated with the use of the added practice being referenced in a number of paragraphs.
Now to get your copy of this 22-page standard practice. Use an authorized distributor like Document Center Inc. You can search for and order ASTM standards at our webstore, www.document-center.com. Here is a direct link to the order page for ASTM E1444/E1444M for your convenience. And your purchase will come with our best-in-class notification service!
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