Conventional NDT

SONOMATIC RAIS continues to grow and evolve within the modern market. We utilise the latest technology to ensure we deliver the best results to our clients, whilst ultimately saving time and money.

Within the RAIS Division, we provide Conventional NDT services including, but not limited to,

Eddy Current

A Sonomatic RAIS Rope Access and Inspection Services Technician providing Eddy Current Inspection, just one of the various techniques offered by the NDT company

Corrosion under insulation (CUI), corrosion blistering and scabs, flow-accelerated corrosion (FAC), corrosion under fireproofing (CUF), and corrosion under coatings are possibly the greatest unresolved asset integrity problems in the industry. 

Current methods used to measure wall thickness over lift off, without removing insulation, all have severe limitations and existing pulsed eddy current (PEC) solutions rely on outdated technology. It’s time for evolution.

Heat Treatment

Post Weld Heat Treatment is an essential part of both the Operation and Maintenance of assets in the fabrication, Oil & Gas and Power Generation Industry. The welding process can unintentionally weaken equipment by imparting residual stresses into a material which can lead to reduced material properties. 

This said, Post Weld Heat Treatment (PWHT) is a method of materials testing used for reducing and redistributing said residual stresses in materials ensuring that the material strength is retained after the welding course. It is also used as a method of hardness control or even to enhance material strength.

Hydrostatic Testing

Hydrostatic Testing being performed by a Sonomatic RAIS Rope Access and Inspection Services Technicians in the Hydro Bay at The Core in Aberdeen Scotland

Hydro testing of pipes, pipelines and vessels is performed within our specially designed and constructed Hydro Bays, to expose defective materials that may have missed prior detection, to ensure that any remaining defects are insignificant enough to allow operation at design pressures, to expose possible leaks and to serve as a final validation of the integrity of the constructed system. ASME B31.3 requires this testing to ensure tightness and strength.


A multi disciplined Sonomatic RAIS Rope Access and Inspection Services Technician performing Magentic Particle Inspection (MPI)

The two most common Non-Destructive Testing Methods applied for the detection of surface breaking defects are magnetic particle testing and dye penetrant inspection. MT Inspection is limited to detecting surface imperfections in Ferromagnetic Material (Mainly Carbon Steels) and PT Inspection for use on Non-Conductive Materials (For example, Stainless Steel). 

Both methods require the surface to be free of coatings and loose materials in order for the Inspection to be carried out successfully.


Radiographic Testing (RT) is a non-destructive testing method of inspecting materials for hidden flaws by using the ability of short X-rays and gamma rays to penetrate various materials and can be carried out on our clients sites (under a strictly controlled environment) or within our Radiography bays.

The vast majority of radiography concerns the testing and grading of welds on pressurised piping, pressure vessels, high-capacity storage containers, pipelines and pipeline integrity, and some industrial structures and structural welds. Other tested materials include welder’s test plates, machined parts, plate metal, or pipewall (locating anomalies due to corrosion or mechanical damage).

RAIS Tanks

Sonomatic RAIS Rope Access and Inspection Services provide NDT inspection both conventional and advanced on tanks including rope access, confined spaces

Silverwing FloormapX: Setting new standards in the field of tank floor scanners, the FloormapX breaks existing boundaries and defines new levels of excellence. The Silverwing FloormapX supports multiple scan modes and multiple reporting options to suit any procedure, any client requirement. 

FloormapX features three scanning modes, all accessed from within a single on-board software platform including Mapping, Freescan Mode and Pause on Defect. The FloormapX seamlessly combines two core technologies on one single system – enhance MFL and Stars.

Ultrasonic Testing

A Sonomatic RAIS Rope Access and Inspection Services Technician conducting Ultrasonic Testing (UT) just one of the various techniques offered by the NDT company

Ultrasonic Testing is a Non-Destructive Testing method used for obtaining Wall Thickness Measurements to determine any erosion and/or corrosion damage and for identifying flaws including weld root erosion and fatigue cracking in welded components. 

UT Inspection works for determining both internal and external defects and is an accurate measuring tool for establishing the exact location and depth of noted flaws.

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