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NDT inspection



We use both conventional and advanced methods such as Phased Array to perform inspection, production follow-up and documentation. We conduct conventional Non Destructive Testing according to ISO-9712. We focus on the use of Phased Array with challenging geometries where conventional NDT methods can be time consuming and expensive.


Phased Array is an advanced Ultrasonic NDT method that produces images by emitting a wave front with sound that reveals a larger image in a sector with different angles and uncovers defects with different orientations due to varying approaches.  In recent years, Phased Array has replaced much of X-Ray work due to more accurate and advanced equipment without harm to the environment and surroundings.

Sonatest Phased Array



Scanplan according to ISO-13588

To make sure each scan is as effective and as optimally as possible, we simulate all scans in relation to geometry and thickness prior to execution.

Phased Array scanplan



  • Welding inspection on all geometries

  • In-service inspection challenging geometries

  • Boltinspection e.g swingarms, shafts, cranes, etc..

Phased Array Inspection


NDT acc ISO-9712

Non Destructive Testing (NDT) is a testing and analysis technique used by the industry to evaluate the properties of a materiel, component, structure or system for characteristic differences or welding defects an discontinuities without causing damage to the original part.

Visual Testing

VT - Visual Testing

Visual Testing (VT) is based on the inspection for flaws that are visible to the naked eye and is the most commonly used NDT method used across all industries. It allows for feasible and fast control of quality at every step of the fabrication or maintenance prosess.

Magnetic Testing

MT - Magnetic Testing

Magnetic Particle Inspection (MPI) is a process for detecting surface and shallow subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt and some of their alloys. The process puts a magnetic field into the part.

Penetrant testing

PT - Penetrant Testing

Penetrant method of non-destructive testing is dedicated to detecting surface defects invisible to the naked eye and is normally used on non-magnetic materials where MPI is unsuitable. It is based on use of capillary properties of liquids (namely, on capillary penetration of special indicator-liquids inside defects)

Ultrasonic testing

UT - Ultrasonic Testing

Ultrasonic Testing is a testmethod that utillizes to detect cracks and defects in parts and materials. It can also be used to determine a material's thickness, such as measuring the wall thickness of a pipe. By positioning defects by using trigonometry and logarithmic amplitude measurement, the method is very accuarate.

Radiographic testing

RT - Radiographic Testing

Radiographic testing is a testing method which uses either x-rays or gamma rays to examine the internal structure of manufactured components identifying any flaws or defects. In Radiography Testing the test-part is placed between the radiation source and film (or detector). Due to the danger of radiation, this method is used at a minimum.

Eddy Current testing

ET - Eddy Current

Eddy Current testing is a testing inspection method used for a variety of purposes, including for flaw detection, material and coating thickness measurements, material identification and establishing the heat treatment condition of certain materials. When defects are detected, MPI or penetrant inspection is used to verify result. (Paint is to be removed)

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