-     NDT/ Non-destructive testing

DDVS employees are certified for performing non-destructive testing (NDT) in accordance with the standards ISO 9715 and EN 473.
We have the capacity to inspect for fissures in welded assemblies up to a maximum size of 10,000 mm x 5,000 mm x 3,800 mm. There are three methods we use for this purpose:

-     Magnetic fissure testing

Certified for MT level 2.

DDVS possesses high-quality equipment (Hirsch Multiplus-1001-M) for performing magnetic detection of (hairline) cracks. Our certified employees are able to use this equipment to inspect large steel structures for signs of cracks, not only above surface but also subsurface.

-     Penetrant fissure testing

Certified for PT level 2.

We identify signs of cracks by applying a capillary liquid to the surface to be inspected.

-     Visual material testing

Certified for VT Level 2

Through complex visual testing,
we are able to perform desired quality checks on complex welded assemblies and finished products. Scope = ISO 5817 and ISO 10042.



With the help of our advanced software, the test results are presented to you in the form of a report that is clear and easy to understand.