Home > What we do > Non-destructive testing (NDT)


  Internal & External Vessel and Tank Inspection/Surveys
dividerVisual Inspection
dividerClose Visual Inspection
dividerRemote Visual Inspection or Remote Digital Video Inspection
dividerEddy-current Testing
dividerMagnetic Particle Inspection (MPI)
dividerDye Penetrant Inspection (DPI)
dividerUltrasonic Testing (UT)
dividerOCTG Inspections
dividerRig Inspection Services
dividerPainting & Coating Inspection
dividerInspections of Lifting Gears, Equipment and Baskets
dividerROAV Inspection (Remotely Operated Aerial Vehicles)
dividerBuilding & Structural Inspection
Non-Destructive Testing (NDT) NEXT

Internal & External Vessel and Tank Inspection/Surveys
(ABS, DNV-GL, Bureau Veritas & Lloyds Register) Confined space, hazardous environment inspections and ship special surveys.

Visual Inspection
It is a common method of quality control, data acquisition, and data analysis. Used in maintenance of facilities, by means of inspecting equipment and structures utilising all of the raw human senses such as vision, hearing, touch and smell and /or any non-specialized inspection equipment.

Close Visual Inspection
As the name suggests, this is a detailed and close up visual examination of welds / structures / vessels / pipework. The qualifications applicable to CVI can be PCN, AINDT or CSWIP. Typically, CVI would be used to identify areas requiring more in-depth inspection. Examples of its application could be identification of pipework likely to require further wall thickness checks (see Ultrasonic Testing), newly fabricated assemblies requiring CVI pre-further NDT (MPI/UT), in-situ structural assemblies requiring CVI to detect fatigue induced cracking prior to further NDT (ECI/MPI), etc.

Remote Visual Inspection or Remote Digital Video Inspection
RDVI, is a form of visual inspection which uses visual aids including video technology to allow an inspector to look at objects and materials from a distance because the objects are inaccessible or are in dangerous environments, also allowing for images to be viewed remotely by a 3rd party whilst the inspector is operating the equipment at the worksite. RVI is also a specialty branch of non-destructive testing (NDT)

Eddy-current Testing
It is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.

Magnetic Particle Inspection (MPI)
MPI is a process for detecting surface and slightly subsurface discontinuities in ferro-magnetic materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the part. The presence of a surface or subsurface discontinuity in the material allows the magnetic flux to leak. Ferrous iron particles are then applied to the part. If an area of flux leakage is present, the particles will be attracted to this area. The particles will build up at the area of leakage and form what is known as an indication. The indication can then be evaluated to determine what it is, what may have caused it, and what action should be taken, if any.

Dye Penetrant Inspection (DPI)
DPI also known as penetrant testing (PT), is a widely applied and low-cost inspection method used to locate surface-breaking defects in all non-porous materials (metals, plastics, or ceramics). The penetrant may be applied to all non-ferrous materials and ferrous materials, although for ferrous components magnetic-particle inspection is often used instead for its subsurface detection capability. DPI is used to detect casting, forging and welding surface defects such as hairline cracks, surface porosity, leaks in new products, and fatigue on in-service components.

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