Understanding API ICP653 Reading 7-Worksheet-04 Part1

12.1.2 Shell Penetrations
12.1.2.1 UT lamination check required for:
a. Adding reinforcement plate to an unreinforced penetration.
b. Installing a hot-tap connection.
12.1.2.2 Cavities from gouging or grinding to remove reinforcement
pad welds require either a magnetic particle or liquid penetrant test.
12.1.2.3 Completed welds attaching nozzle to shell or pad to shell and nozzle
neck shall be examined by a magnetic particle or liquid penetrate test.
Consideration should be given for extra NDE on hot taps.
12.1.2.4 Complete welds in stress relieved components require magnetic
particle or liquid penetrate testing (after stress relief, but before hydrostatic
test).
Charlie Chong/ Fion Zhang