SERVIZIO | Servizi-di-ispezione | NDT


Inspection Services


DT is analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. The terms non destructive examination (NDE), non destructive inspection (NDI), and non destructive evaluation (NDE) are also commonly used to describe this technology. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research.

The 6 (six) most frequently used NDT methods are eddy-current, magnetic-particle, liquid penetrant, radiographic, ultrasonic, and visual testing. NDT is commonly used in forensic engineering, mechanical engineering, petroleum engineering, electrical engineering, civil engineering, systems engineering, aeronautical engineering, medicine.

Birawa Inspection team offers a broad range of Non-Destructive Testing and Inspection services both onshore and offshore site. Our technicians are supported by the latest equipment which can be mobilised to provide non destructive testing services for assets such as pipelines, storage tanks, pressure vessels, heat exchangers, condenser tubes, boiler tubes and process columns.



Ultrasonic Testing


Magnetic Particle Inspection


Liquid Penetrant Testing


Radiographic Testing


Hardness Testing


Visual Inspection


DRONE Inspection


  • Ultrasonic Testing (UT) can be used for the detection of surface flaws and internal flaws in a range of materials typically steel, other metals and alloys.
  • UT applications can range from material thickness and corrosion monitoring, to finding sub-surface defects in welds, castings and wrought products, making UT the most popular NDT method available.
  • This technique can also be used to determine the wall thickness of pipelines, tanks and vessels and also to monitor internal corrosion, all from the external surface.


  • Magnetic Particle Inspection "MPI" (also known as Magnetic Testing "MT") is used for the detection of surface and near-surface flaws (such as cracks) in ferromagnetic materials e.g. steel and iron.
  • The presence of a surface or near surface discontinuity causes the magnetic flux to distort or leak. Fine magnetic particles (either dry or suspended in a carrier fluid) are applied to the surface of the item under test. These magnetic particles are attracted to any area of flux distortion or leakage thus creating a clear visible indication to the operator.
  • A magnetic field can be applied to the item under test by either direct magnetization or indirect magnetization.


  • Dye Penetrant Inspection “DPI” (also known as Penetrant Testing “PT” or Liquid Penetrant Inspection “LPI”) is used for the detection of surface breaking flaws in all non-porous ferrous and non-ferrous materials of any size such as metals, plastics and ceramics.
  • Typical applications would be forged, cast or welded products which are prone to cracking and other surface flaws, or when Magnetic Particle Inspection is not practical for reasons such as material type or complex geometry.


  • Radiographic Testing (RT) can be used for the detection of hidden flaws in solid objects and requires either x-rays or gamma rays. One of these sources of ionising radiation is positioned on one side of the item to be inspected and a photographic film is placed in close proximity on the other side. The radiation is partly absorbed during transmission and differences in material thickness or absorption qualities are recorded on the film giving a full size image showing internal detail.
  • The main benefit of radiography is that it provides a non-destructive method of detecting hidden flaws and provides a permanent record in the form of a radiograph.


  • Hardness Testing (HT) can be used to measure the hardness of a material to aid in material selection / acceptance and production testing.
  • The most common form of hardness test involves the Leeb Rebound principle where the hardness value is derived from the energy loss of a defined impact body after impacting on the surface of the component under test.
  • Generally the spherical test tip is fired within the impact device body at the test surface and rebounds faster from harder test samples than it does from soft ones.


  • Visual Testing (VT) also know as Visual Inspection, is an NDT method used extensively to evaluate the condition or the quality of an item. It is easily carried out, inexpensive and usually doesn’t require any special equipment. Visual Testing may be carried out by eye alone or can be enhanced by the use of optical systems such as magnifiers and microscopes.
  • Visual inspection must take place in a clean, comfortable environment with adequate lighting. There should be reasonable access to the parts to be inspected and attention should be paid to safety, working position, and atmospheric conditions. The test piece should be clean and free from protective coatings.


  • With the ability to carry out visual inspections from the air has the obvious advantages of drastically reducing the amount of Scaffolding teams required or any other expensive access issues and reduce safety risk to the Inspectors.
  • Providing real-time high definition images of any areas that have no access. Thermal imaging can detect breakdown of insulation and lagging that can only be detected by air and the list goes on.
  • Drone inspection can be applied as pre attemp measurement before actual works shall be applied both for onshore and offshore site.
  • Suitable for pipeline monitoring, facilities surveillance, offshore riser and splash zone, flare tip inspection both daylight and nightime.