Non Destructive Testing (NDT)

Non Destructive Testing or NDT, is quite simply a means of assessing the structural integrity or properties of structures or materials without damaging them (although some techniques do require surface coatings to be removed).

The term applies to a range of methods from a straightforward visual inspection, magnetic particle inspection or dye penetrant inspection, to more complicated disciplines such as Eddy Current Inspection or Ultrasonic Testing. The various techniques are designed to compliment each other to provide the client with an complete product inspection coverage.

Non Destructive TestingOffshore Non Destructive TestingDavid Non Destructive Testing







Of critical importance to all Non Destructive Testing (NDT) techniques is the ability (of the technician) to interpret the results generated and to understand where they fit into an assessment of the integrity of the structure as a whole. This only comes with experience and is an area in which our track record speaks for itself.

Our core team (permanently employed and qualified to both PCN and ASNT standard, including the new PCN /CSWIP Offshore Inspectors qualification) have been with us many years and are supported by an in-house inspection department.

Axiom personnel were at the forefront during the early development of ultrasonic and eddy current testing and this innovative approach continues today with the adaptation of existing technology to meet new challenges (testing through TSA coating using Eddy Current or Ultrasonic Testing of stainless steel mast bolts in the Renewables industry, for example).

Benny Donnelly Explaining Ultrasonic Testng to HM the Queen

Former Technical Director, Benny Donnelly, here shown demonstrating Ultrasonic Inspection to HM the Queen in the mid-sixties. A key member of the team that introduced the first ultrasound machines to hospitals, equipment developed by Benny is on display at museums in Glasgow


Some Recent Comments from our Clients


ConocoPhillip uk “Just a quick note to say how happy I have been with the attitude and professionalism of your technicians. They have carried out their duties diligently and have actively participated in the platform Safety initiatives” – Forbes Scott-Lodge | OIE | ConocoPhillips Judy Platform



enquest logo“The positive highlight must be the early detection of potential failure mechanism connected with the torque tube section #5 and the damage to the taper and keyway pins. This gives us great clarity of where we need to look in future inspections and what we are most likely to need to replace and therefore carry as stock.

All in all, I would say that this inspection has been of the highest quality; in particular the presentation of the findings is best in class, amongst the best that I have seen.” – Neil Mitchell, Enquest


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