NDT percentage clarrification
NDT percentage clarrification
(OP)
Hi guys,
A real quick one...
If the level of NDT of a weld is defined as 20% does this mean that 1 in 5 of welded joints needs to be tested or that 20% of every joint needs to be tested?
For example,
If there are 10 butt welds that require 20% MPI, does this imply that 2 out of 10 of the welds need to be fully tested or that a 1/5th of every joint needs to be tested?
Thanks,
A real quick one...
If the level of NDT of a weld is defined as 20% does this mean that 1 in 5 of welded joints needs to be tested or that 20% of every joint needs to be tested?
For example,
If there are 10 butt welds that require 20% MPI, does this imply that 2 out of 10 of the welds need to be fully tested or that a 1/5th of every joint needs to be tested?
Thanks,





RE: NDT percentage clarrification
If related to spot radiography as described in ASME VIII, Division I, see UW-52.
RE: NDT percentage clarrification
RE: NDT percentage clarrification
Cheers,
DD
RE: NDT percentage clarrification
Beware of clauses alike "20% of full length of the weld" in your clients spec., because these could be read as "of every weld", whereas the quote of the manufacturer / lab by default would most probably be based on the effective approach.
Regards
RE: NDT percentage clarrification
RE: NDT percentage clarrification