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See Chinese contents: NB/T 47013.1-2015 NB/T 47013.1-2015: Nondestructive testing of pressure equipments - Part 1: General requirements
This Part of NB/T 47013 specifies the general requirements and use principles of radiographic testing, ultrasonic testing, magnetic particle testing, penetrant testing, eddy current testing, leak testing, visual testing, acoustic emission testing, ultrasonic time of flight diffraction technique testing, X-ray digital radiography testing, magnetic flux leakage testing, pulsed eddy current testing and other nondestructive testing methods.
