What Is Positive Material Identification?
Positive Material Identification (PMI) is a non-destructive testing method used to verify the chemical composition and alloy grade of metallic materials. By using various techniques, PMI determines the percentage of constituent elements in a metal, enabling identification of material grade and verification of correct specification.
Why Choose Our Positive Material Identification Services
At International Testing Services, our PMI services combine state-of-the-art equipment, and highly-trained technicians to deliver rapid, accurate material verification and traceability. We operate across the UK and internationally, providing on-site PMI testing for critical assets, welds, and components, ensuring they match the required alloy grades and standards.
With our Level 3 oversight, ISO-compliant reporting, and deep industry experience, you can trust us to safeguard your asset integrity, prevent specification mismatches, and support your production with precision and compliance.
Benefits of Positive Material Identification
Rapid Material Verification: Instantly identify material grades and confirm alloy compliance on-site.
Avoid Costly Failures: Detect wrong or mixed-up alloys before they enter service or cause damage.
Non-Destructive Testing: Verify materials without damaging components or disrupting production.
Wide Material Compatibility: Suitable for steels, nickel alloys, stainless steels, titanium, aluminium, and more.
Full Traceability & Compliance: Deliver detailed reports that support audit, standard and regulatory requirements (for example material verification under ASME or API codes).
On-site Testing Flexibility: Perform PMI in the field or on live equipment to minimise downtime and logistical cost.
