#Data is fully recorded.
#Fully automated data collection protocols.

Disadvantages

#Interpretation of data is highly operator dependent.
#Difficult to find small pitting defects.
#Not very effective at inspecting areas close to accessories.
#Can't find gradual wall loss.
#Needs good procedure

List of standards

;British Standards (BSI)
* BS 9690-1:2011, Non-destructive testing. Guided wave testing. General guidance and principles
*

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