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  1. welding09

    Positive Material Identification(PMI)

    As per API RP-578, below techniques are adopted :- 1. X-Ray Fluorescence Method (XRF) - Can detect all major elements, except lighter elements like "C" and a few others. (XRF technique can detect only element with atomic number greater than 21) 2. Portable Optical Emission Spectroscopy (OES)...
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