Thank you all for your replies. You've confirmed my belief that there are no "easy outs" to this one. I appreciate your input. Because of people like you, this forum has become an immeasurably useful reference tool to me. Usually my questions have already been answered in one way or another...
Fellow Members,
I have been trying to find if there is a similar rule for Section VIII-1 pressure vessels to allow temporary increases in pressure and temperature avove the design conditions as is allowed in B31.3 for process piping.
I don't know if that would be considered as "abnormal...
