Welding Inspection & Metallurgy API ICP Self Study Notes

3.41 nondestructive examination (NDE): The act of determining the
suitability of some material or component for its intended purpose using
techniques that do not affect its serviceability.
3.42 overlap: The protrusion of weld metal beyond the weld toe or weld root.
3.43 oxyacetylene cutting (OFC-A): An oxygen gas cutting process
variation that uses acetylene as the fuel gas.
3.44 PMI (Positive Materials Identification): Any physical evaluation or test
of a material (electrode, wire, flux, weld deposit, base metal, etc.), which has
been or will be placed into service, to demonstrate it is consistent with the
selected or specified alloy material designated by the owner/ user. These
evaluations or tests may provide either qualitative or quantitative information
that is sufficient to verify the nominal alloy composition.