Positive Material Identification(PMI)
Ensure Alloy Compliance with Precision & Confidence – Backed by Eurofins Spectro
Eurofins Spectro offers advanced Positive Material Identification (PMI) services across India, providing fast, accurate, and non-destructive alloy verification to ensure the correct materials are used in your critical components. PMI is a crucial quality assurance step in numerous industries—especially oil & gas, power, construction, manufacturing, and chemical processing.
Our PMI services confirm that the metallic materials delivered to you meet purchase order specifications, design codes, and international quality standards—avoiding material mix-ups and ensuring operational safety.
Why Choose Eurofins Spectro for PMI?
- ✅ PAN India On-Site Service
Our expert inspectors are available nationwide for rapid deployment and on-site testing. - ✅ Non-Destructive Testing
Alloy verification is performed without altering or damaging the component. - ✅ Advanced Portable Equipment
Using state-of-the-art XRF and OES analyzers, we offer comprehensive metal composition analysis. - ✅ Skilled Inspection Engineers
Our team is experienced in PMI inspections for pipes, valves, fasteners, welds, flanges, castings, and more. - ✅ Compliance with Global Standards
We test in accordance with ASTM A751, ASME Section II, ASTM E353, ASTM E354, and API RP 578.
What We Test
Our PMI testing services cover a wide variety of components, including:
- Alloy steel pipes, fittings, fasteners, flanges, valves
- Clad and forged components
- Instrumentation and control items (valves, safety devices)
- Weld joints, longitudinal welds, and ring-type gaskets
- Ferrous & non-ferrous materials: Nickel, Cobalt, Stainless Steel, Tool Steel, Copper alloys, etc.
Equipment We Use
🧪 XRF Portable Alloy Analyzer (Oxford X-Met 3000TSR, Arc Met 3000)
- Ideal for identifying Cr, Ni, Mo, Mn, Ti, Co, Cu, Zn, Pb, W, and other elements.
- Best suited for quick, non-destructive identification of alloy types.
🧪 ARC-MET 8000 Mobile Lab (OES Portable Spectrometer)
- Offers full-spectrum elemental analysis, including Carbon, Sulfur, Phosphorus, and Silicon.
- Requires a clean, flat 20 mm surface; uses Argon gas for enhanced accuracy.
Surface Requirements Before Testing
To ensure precise results:
- Test surfaces must be clean—free from grease, rust, scale, or dirt.
- Light filing may be required to achieve optimal contact between probe and surface.
Industries We Serve
Our PMI solutions support:
- Oil & Gas Refineries
- Petrochemical Plants
- Foundries & Metal Fabricators
- Power Plants & Utilities
- Construction & EPC Contractors
- Scrap Traders & Recyclers
- Aerospace & Defense Manufacturing
- Chemical Processing Units
Our Clients Include:
EIL, NHPC, IOCL, L&T, Hitachi, Bridge & Roof, Toyo Engineering (Panipat) and more.
Contact us today to book a consultation or request a quote.
Frequently Asked Questions (FAQs)
What is Positive Material Identification (PMI) and why is it important?
PMI is a non-destructive technique used to verify the chemical composition of metal alloys. It ensures the correct material has been supplied as per engineering or purchase specifications—helping prevent costly failures, shutdowns, or safety hazards.
What are the key differences between XRF and OES in PMI?
XRF is faster and ideal for non-ferrous and stainless steels, but cannot measure light elements like carbon. OES, though requiring argon gas and a clean flat surface, can analyze light elements (C, S, P, Si), making it more suitable for carbon steel grade verification.
Can PMI testing be done on-site at our facility or project location?
Yes. Eurofins Spectro provides mobile PMI services with handheld and portable devices that can perform inspections directly at your facility, yard, or project site—anywhere across India.
What standards and codes do your PMI services follow?
Our testing complies with international and industry standards including ASTM A751, API RP 578, ASME Section II, ASTM E353, and ASTM E354, ensuring your materials meet global quality and safety norms.
What preparation is needed before PMI testing?
The surface must be accessible, clean, and free of coatings or debris. A flat spot of at least 20 mm is required, especially for OES. Light grinding or filing may be necessary for accurate readings.
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