A welder has to put his stamp beside the weld he completed, if multiple welds are on one pipe does he have to stamp everyone?
In the commentary for NFPA 13, which is not part of the standard, it says that they can mark the pipe once, instead of each weld
Does it say how we should mark the pipe ie..stamp
Does not say how to be marked.
I have never looked for any markings either.
I guess now days most of it is shipped with the welds done, guess you could ask for paperwork from the supplier, as kind of a paper trial??? They should know who welded what.
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