API 570 Para. 8.2.8(d) - Grammar Interpretation

[marty007]

Hey everyone,

Grammar question here for interpreting codes...

API-570 paragraph 8.2.8(d) - associated with closure welds:
d) MT or PT shall be performed on the root pass and the completed weld for butt welds and on the completed weld for fillet welds.

Question: for socket weld closure welds, allowed per para 8.2.8(b)(2), do I need to perform MT or PT on the root pass?

Thank you,
Marty

 

[0707]

No, but you should left a gap of 1 or 1,5 mm for dilatation

Regards

 

[r6155]

No root pass in fillet weld.
MT or PT in the finished fillet weld.

Regards