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Non Destructive Testing // Equipment & Accessories

Reference Block Type 1 (MTU-3)
Magnetic particle inspection materials
  • Permanently magnetised steel disc containing coarse and fine cracks
  • The MTU test piece consists of a maganiferous steel, which is alloyed with vanadium


The Reference Block is a permanently magnetised steel disc containing coarse and fine cracks that have been induced onto the surface through a special treatment. The surface is then ground and coated. The disc is used to test the performance of the magnetic particle materials and lighting environment being used and to check the sensitivity of the materials on a daily basis for material degradation and/or bath contamination. A reference photograph accompanies the Reference Block so the existing bath can be compared to indications from an optimum system.


• International Standard Organisation ISO 9934-2, Section B2

Ordering Info 

EQPT-PM 6 Each
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