VERIFY QUALITY WITHOUT HARMING SAMPLES

Nondestructive Testing (NDT) is a varied group of test and inspection processes used to detect surface and sub-surface defects or inconsistencies in test samples, without affecting the future operating performance of the inspected parts. This category of test methods is also known as NDT Testing, Non Destructive Examination and Non Destructive Evaluation.

Failure of a component, structure or weld can cause significant hazard to the environment and often leads to significant costs. Ensure safe, continuous and cost effective performance of your asset, basing your decisions on reliable NDT-data on the assets condition.

We deliver NDT services to all industries during fabrication, in-service as well as during shut downs and maintenance. Years of experience and better understanding for NDT allows us to provide high quality services at all times.

We offer:

  • Ultrasonic testing (UT)
  • Radiography testing (RT)
  • Visual Testing (VT)
  • Eddy Current testing (ET)
  • Penetrant testing/Dye penetrant testing (PT/DPI)
  • Magnetic particle testing (MP)
  • Leak testing (LT)
  • In-service inspection

Standard NDT methods & applications

Ultrasonic testing (UT)

We perform manual and automated ultrasonic NDT inspection of anything ranging from components to welds and castings. We also offer P-scan, ToFD (time of flight diffraction) and PAUT (phased array).

Ultrasonic testing is our speciality, and we can deliver anything from standard manual inspections with standard equipment to highly advanced automated Phased Array scanners. Furthermore, we customise and adapt our equipment to focus on the customers need to find defects such as as cracks and corrosion.

The P-scan stack system can be applied for various NDT inspection jobs, providing a clear visualisation and reliable data.

Radiography testing (RT)

Using various isotopes, including cobalt iridium and selenium, as well as x-ray and betatron units, we offer x-ray of thicknesses up to 200 mm in steels and 1 m of concretes. We offer both standard and digital radiography testing as part of in-service inspection of structures and piping systems,both onshore and offshore. We look for corrosion and evaluate new welds.

Digital radiography of concrete

Our portable X-ray Betatron produces X-ray beams with an energy level of 7.5 MeV. With such high energy, X-raying can penetrate thick concrete (up to 1.5 m) and steel structures to reveals the inside of the structure.

X-ray provides information about:

  • Reinforcement details, configuration, position, depth, amount and dimension.
  • Void detection in concrete or in cable ducts grouted with mortar including size of void
  • Damage on reinforcement or embedded steel parts
  • Thickness measurements

Visual testing (VT)

Visual testing (VT) is a standard NDT inspection technique. It is commonly used to detect flaws and irregularities during construction and welding. We look at cues that may reveal fatigue or other degradation that may have happened.

Eddy current testing (ET)

Eddy Current Testing (ET) is mainly used for surface crack detection on metallic materials, but also to detect corrosion on thin materials. The main advantage compared to MT and PT, which also detect surface cracks, is that it can test trough 1-2mm of coating. Eddy Current is a highly sensitive tool that provides quick results with minimum preparation.

In certain cases, we have developed probes and techniques that detect defects trough up to 10mm coating.

Penetrant testing (PT)

Liquid penetrant testing (PT) is an NDT method that is excellent to detect surface breaking flaws. A bright red dye is applied to the surface before being cleaned and thereafter being painted with a white developer. This allows it to penetrate into any flaws (which draws out the red dye), making it much easier to detect with the naked eye.

We typically use this technique for detecting:

  • Cracks
  • Pin holes in welds
  • Fractures
  • Seams
  • Welding imperfections

Magnetic particle testing (MT)

Magnetic particle testing (MT) is based on the use of a magnetic field and magnetic particles and used on objects with high permeability such as carbon steel. It is mainly used to detect surface or subsurface cracks during fabrication or in-service inspections of castings, welds or forges.
Magnetic particle testing is a highly reliable and sensitive inspection technique.

Leak testing

Leak testing is an NDT method is often used to inspect pressure vessels or vacuum systems. We offer a variety of leak tests, suited to the task at hand. Vacuum ad helium leak testing are the most common.