Understanding API ICP653 Reading 7-Worksheet-04 Part1

G.2.6 qualification test: The demonstration test that is used to prove that a
procedure or examiner can successfully find and prove-up tank bottom metal
loss.
G.2.7 scanning operator (or operator): The individual that operates
bottomscanning equipment.
G.2.8 sizing (or prove-up): The activity that is used to accurately determine
the remaining bottom thickness in areas where indications are found by the
bottom scanning equipment. This is often accomplished using the UT method.
G.2.9 tank bottom examination: The examination of a tank bottom using
special equipment to determine the remaining thickness of the tank bottom. It
includes both the detection and proveup of the indications. It does not include
the visual examination that is included in the internal inspection.
Charlie Chong/ Fion Zhang