Notes:

1. According to ASME BPVC.IX-2019, Table QW-452.1(b) – Thickness of weld metal qualified​
2. According to ASME BPVC.IX-2019, Table QW-452.3 – Groove weld diameter limits
3. t – (weld thickness) the “Thickness of Weld Metal” is the total weld metal thickness deposited by all welders and all processes in the test coupon exclusive of the weld reinforcement.
4. WQT / WPQ – Welder Qualification Test / Welder Performance Qualifications.
5. QW-142 SPECIAL EXAMINATIONS FOR WELDERS. Radiographic or Ultrasonic examination per QW-191 may be substituted for mechanical testing of QW-141 for groove‐weld performance qualification as permitted in QW-304 to prove the ability of welders to make sound welds.