Non-Destructive Testing (NDT)

Non-Destructive Testing (NDT) comprises methods used to inspect a wide range of materials without damaging them. It reduces costs and ensures the quality of the final product, and is widely used in the petrochemical and aeronautical industries.

Why use several NDT methods?

• Detection and evaluation of discontinuities
• Determination of defect location
• Characterisation of structure and microstructure
• Leak detection
• Accurate dimensional measurement

Standard methods used

Visual Inspection

Commonly defined as the examination of a material, component or product for non-conformities, by visual means or in conjunction with various aids.

Liquid Penetrant Testing

One of the most common methods for detecting surface discontinuities in ferromagnetic and non-ferromagnetic materials.

Ultrasonic Testing

We apply this method to detect internal and external discontinuities in materials, based on the reflection of acoustic waves. Thickness and corrosion are determined with great ease and precision.

Positive Material Identification (PMI)

We provide PMI services through experienced, trained personnel, with on-site testing before parts enter the production process.

Conventional Radiography (RT)

Based on the variation in the intensity of electromagnetic radiation (X-rays or gamma rays) caused by internal discontinuities, recording the image on film after processing.

Digital Radiography

A form of X-ray or gamma imaging using digital sensors instead of traditional film. Advantages: time efficiency, lower radiation and the ability to digitise and enhance images — which can be sent over the internet for interpretation and archived on disc or USB.

Magnetic Particle Testing

Detection of surface and slightly sub-surface discontinuities in ferromagnetic materials.

Vacuum Box Testing

Vacuum testing for tank inspection in accordance with API 650 — a simple, fast method to detect discontinuities in the welding process.