Chemical tests “on site” have the big advantage to perform the analysis with great versatility and speed directly at the customer site . For this purpose can be used XRF equipment (PMI – Positive Alloy Material Identification) for a generally qualitative analysis of the products and OES equipment (Optical Emission Spectroscopy) for a control also quantitative of the elements of the material subjected to analysis without the need to take samples from the analyzed piece. In both cases it is actually possible to obtain the chemical composition of the product , but the OES method, besides being much more accurate , allows the reading of elements which are otherwise undetectable, such as carbon.
