Radiographic Testing – RT

Radiographic testing is a non-destructive method that utilizes electromagnetic energy (radiation) from X-Rays or gamma rays in order to detect both surface and internal discontinuities. RT can be used to inspect process piping, pressure vessels and valves, providing an easily viewed and permanent record of the component that has been inspected. IRISNDT has the ability to utilize either computed or traditional film radiography techniques as per client specification. IRISNDT carries out Radiographic testing both on site and in radiographic enclosures at all our branch locations.

We predominantly carry out radiographic inspection of pipe butt welds and vessel’s in accordance with the requirements of ASME V Article 2 and BS EN ISO 17636 Class A & B specifications within the scope of our UKAS accreditation. Our radiographers are qualified to industry standards PCN or SNT as required by specification. In addition we can carry out radiographic inspection of castings in accordance with ASTM specifications.

Our 36,000sq ft workshop facility in Immingham which was opened in 2014 comprises of 4 radiography bays served by 5 and 20 tonne overhead cranes, we are able to take pipe spools up to 14m in length and vessels up to 3.8m in Ø within that load capacity. Gamma-Radiography exposure equipment comprises of the latest radiographic devices with Ir-192 sources up to 1110Gbq and Se-75 sources up to 2200GBq. In addition our small area radiography system utilizes devices with Se-75 sources up to approximately 370Gbq allowing barrier distances down to 2m. X-Ray equipment comprises all current industry standard site portable equipment.

Our film processing is by automatic systems in our workshop facilities and film processors utilized for site establishment projects. In addition we have mobile darkroom facilities with automatic film processing installed in a site vehicle for the provision of instantaneous film processing at site where a fast response is required.