Engineering Solutions

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Non-destructive Testing (NDT)

Non-destructive testing (NDT) is a vital technique used in industry to assess the properties of materials, components, structures, or systems for defects, discontinuities, or characteristic differences without damaging the original part.
Our world-class NDT, materials testing, and welding quality services ensure the reliability and safety of your products, equipment, or assets. We have deep expertise in every stage of the product lifecycle, from design and manufacturing to operation and maintenance, recognizing the importance of rapid turnaround times. Our Total Quality Assurance services support production processes, quality control, regulatory compliance, new construction, pipelines, plant maintenance, and scheduled shutdown inspections.

PMI (Positive Material Indentification) Test

Positive Material Identification (PMI) is a fast, non-destructive technique that provides a semi-quantitative chemical analysis of various components and assets, used for both material verification and identification. This method is crucial across numerous industries, including oil and gas, power, chemical, pharmaceutical, nuclear, aerospace, and fabrication, for production, asset integrity management, quality control, and safety compliance. Accurate material identification through PMI helps prevent potential product failures in manufacturing. Conducting pre-service and in-service PMI inspections on critical components and welds in oil and gas, power generation, and pharmaceutical facilities can prevent costly breakdowns and ensure operational reliability.

PMI Can:

  • Confirm that the correct alloy was used in the production of products or components.
  • Detect any mixed or incorrect alloys.
  • Ensure that the material used meets the required standards and specifications, both for the customer and the industry.
  • Verify that the appropriate filler material was used in welded components.

Positive material identification (PMI) is conducted using two primary techniques:

  • X-ray Fluorescence (XRF) Analyser: This portable hand-held device is the most common method for on-site PMI, allowing the company to perform tests directly at customers' locations. It scans metal to identify its key components. However, it is not suitable for identifying pure carbon steel materials or certain lighter elements.
  • Optical Emission Spectroscopy (OES): This technique can detect nearly any element, including carbon and lighter elements, making it ideal for carbon steel identification. Although less portable than XRF, the equipment can be transported to sites and used at high altitudes with the right lifting systems.
  • Highly skilled PMI inspectors provide immediate results, which can be certified in a report. If additional analysis is required, the company offers fully quantitative laboratory techniques. The quick turnaround times ensure adherence to production or inspection schedules.