WQ Inspection & Certification now offer PMI Testing, in addition to our range of cost effective NDT Inspections to various industry sectors across the UK.


Positive Material Identification (PMI) testing

Positive Material Identification (PMI) testing, using XRF (X-Ray Fluorescence) is a non-destructive method of chemical analysis that can quickly and accurately identify a wide range of metallic alloys. Our class-leading Niton XL2 Plus analyser delivers fast and accurate semi-quantitative results.


PMI testing can identify material grades of metallic including:

  • Stainless steels
  • Duplex
  • Copper
  • Nickel alloys
  • Aluminium
  • Titanium
  • Exotic alloys
  • Precious metals


Other applications of PMI testing include:

  • Detection of lead in paint
  • Consumer goods
  • Mining and exploration
  • Environmental


PMI is an integral part of process safety management in many industries. Whether the need is:

  • Quality control
  • Sorting of a mixed batch
  • To provide verification of metal alloy grade and composition
  • Weld deposit verification

Positive Material Identification Test

PMI testing is crucial to the success of many businesses

Our skilled and experienced personnel offer a high degree of expertise and product knowledge.  Our customer focused organisation means we offer a reliable and rapid response to meet your PMI testing requirements either on-site around the UK, or at our laboratory in the heart of the West Midlands.