This part of NB/T 47013 specifies the acoustic emis ion detection methods and result classification and evaluation of metal material pressure equipment. This section is applicable to the acoustic emis ion detection and monitoring of active defects in metal pressure-bearing equipment in production and in use. This section does not apply to leakage acoustic emis ion detection and monitoring.
NB/T 47013.9-2012 Referenced Document
GB/T 12604.4 Non-destructive testing.Terminology-Terms used in acoustic emission testing
GB/T 19800 Non-destructive testing-Acoustic emission inspection-Primary calibration of transducers