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U/W NDT Services

In-Water Non Destructive Testing (NDT) Services
Marex Subsea Welds specializes in in-water NDT services. All of our Commercial Divers are experienced and certified TWI CSWIP 3.1U & 3.2U Inspectors. Our NDT inspectors collect and document the material condition of ship hulls, inshore/inland structures, mobile offshore units and their appurtenances, moorings, and a variety of subsea structures. We have an in-company laboratory for Destructive and Non-Destructive Testing and an exclussive experienced assossiate Test House G.A.T.S. Level III Examiner for the development of new inspection procedures, training and personnel certification. 
In-water and topside NDT services include:
  • Visual Testing Method (VT) - Wet, Dry Chamber and Surface
  • Magnetic Particle Testing Method (MT) - Wet, Dry Chamber and Surface
  • Dye Penetrant Testing Method (PT) - Dry Chamber and Surface
Ultrasonic Testing Methods (UT):
  • Ultrasonic Thickness Gauging Method (UTG) - Wet, Dry Chamber, and Surface
  • Ultrasonic Shearwave Testing Method - Flaw Detection (UTSW) - Wet, Dry Chamber, and Surface
  • Radiographic Testing Method (RT) - Wet (film only, source dry), Dry Chamber, and Surface

Inspection data is provided to in-house or client engineers if requested, for evaluation and preparation of repair or replacement procedures. According to ISO 9001:2008 an Objective Quality Evidence (OQE) during and at completion of production work is provided to the client.