Positive material identification

Positive Material Identification (PMI) is the analysis of a metallic alloy to establish composition by reading the quantities by percentage of its constituent elements. Typical methods for PMI include X-ray fluorescence (XRF) and optical emission spectrometry (OES).[1]

References
  1. "Positive Material Identification (PMI)". www.intertek.com. Retrieved 13 January 2019.
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