Positive Material Identification (PMI)

XRF Analysis as a Guarantee of Material Safety

The X-ray fluorescence method (XRF) is rightfully regarded as one of the most accessible and simultaneously the most accurate techniques for determining the composition of substances. The results it provides stand out for their exceptional precision. On top of that, XRF in the context of PMI is one of the most cost-effective solutions actively used by companies around the world. Sample preparation is almost never needed, and when it is, it is kept to a minimum.

Two metal parts can look completely identical from the outside, yet their actual performance will differ considerably because of variations in elemental composition. The specific alloy grade determines how well the material handles high temperatures, resists corrosion, and maintains its strength over time. This is why timely XRF verification helps prevent major accidents. Loss of mechanical integrity often leads to critical situations: stress corrosion cracking, welding defects, and, in the worst cases, explosions at oil and gas processing facilities. Thorough inspection of incoming components and replacement parts ensures they fully meet the required alloy grade and safety standards — thereby eliminating the risk of severe incidents.

The portable PMI analyzers developed by Elvatech based on X-ray fluorescence technology deliver outstanding measurement stability even when external conditions change. They effectively compensate for the effects of air temperature and atmospheric pressure.  

All devices in this series are completely safe for the operator: the radiation level at a distance of 10 cm from any point on the device surface does not exceed the natural background radiation.

Our XRF Spectrometers and Analyzers Excel at Identifying Alloy Grades Across Multiple Bases

These PMI testing devices are widely recognized for their intuitive operation and outstanding accuracy in determining the exact chemical composition of materials.

The XRF-based PMI analyzers can reliably identify a broad spectrum of materials, such as magnesium and aluminum alloys, stainless steels, tool steels, solders, titanium and nickel-based alloys, copper alloys, brasses, bronzes, zinc and cobalt alloys, low-alloy steels, and many more. This list is far from exhaustive — the range of supported alloys and metals is extremely wide.

Critical Applications of Handheld XRF Analyzers for PMI in Key Industries

Handheld XRF analyzers designed for PMI have become essential tools in fields where material composition must be verified with absolute certainty — including aerospace manufacturing, automotive production, and metallurgy. They ensure compliance with quality and safety requirements in construction, oil & gas operations, and nuclear facilities. In the scrap metal recycling industry, they enable fast and accurate sorting of incoming materials, while in environmental monitoring they provide immediate on-site elemental analysis. Their non-destructive, precise, and rapid nature makes these analyzers indispensable for meeting regulatory standards and maintaining high operational performance.

Portable X-Ray Fluorescence Analyzers Built for PMI Work

These portable XRF analyzers have been engineered for maximum ease of use and mobility. A handheld PMI X-ray device puts a full analytical laboratory right in your hand — available for instant use in any location, at any moment.You can now quickly determine the composition of finished products, wires, pipes, or other hard-to-reach components without causing any damage or altering the sample.

These analyzers are distinguished by their high analysis speed, exceptional long-term reliability, rock-solid measurement stability, and top-tier accuracy.

When all these strengths are combined, the result is a set of highly effective instruments optimized for confident material identification in real-world conditions.

To cover a wide variety of application scenarios, two main models have been developed: one focused on speed and another on compactness and ruggedness.

The first model operates at very high speed (count rate well above 500,000 CPS), delivering fast yet highly reliable results. Its extended battery life supports up to 10 hours of uninterrupted fieldwork, so you spend less time recharging and more time working.It incorporates smart safety features including detector protection, radiation monitoring, IR proximity sensors, and low-count detection alerts to ensure correct and safe usage at all times.Seamless compatibility with dedicated PC software and Bluetooth-enabled printers accelerates data handling and report creation.

The second model is currently one of the fastest and most compact handheld analyzers available anywhere. It includes an automatic collimator changer optimized for small-spot measurements — perfect for detailed inspection of welds, jewelry, or small components.A major advantage is its robust, fully waterproof and dustproof enclosure, which allows the device to withstand harsh environments — even brief submersion in water.The foldable touchscreen display improves usability during on-site work and removes the need to connect to an external computer. It supports USB, Wi-Fi, Bluetooth connectivity, and a MicroSD card slot for convenient data management and transfer.

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