Ultrasonic Examination of Offshore Structural Fabrication and Guidelines for Qualification of Ultrasonic Technicians. Set of four (4) blocks required. One block containing a square (buttress) notch and one each with V-notches for 45°, 60°, and 70° orientations for establishing scanning sensitivity for root reflectors.
Note: Simulated references for rejectable flaws established by the Operator’s UT specialist should be added to this block for the calibration of internal reflectors i.e. 3/32″ diameter side-drilled hole. In accordance with API RF 2X.