PMI (Positive Material Identification)

PMI (Positive Material Identification) is actually X-ray fluorescence spectrometry.

It is a analysis technique that, after bombarding the material with X-rays, makes it possible to characterize the elemental composition of the analysed material. In practice, the mass concentrations of the different elements of which the material is composed are obtained and therefore it is possible to positively identify materials

Very useful in the context of quality control of material deliveries or weld repairs, it helps to prevent errors or fraud.