Hi All,
My question must be very easy for you,
In B31.3, What mean procedure qualification by Others, precisely Others ? Who is considered as Others ?
Thanks for you supports
Have you looked at both standards and compared them on this subject? If so, what are your specific questions?
Hi XL83NL,
Thanks for your return,
Yes I compare the both standards, I just see one difference concerning pre-heat.
In B31.12 minimum temperature required is 80 degrees for any...
Hello All,
I have a question about the B31.3 and B31.12.
I would like to know the mainly difference concerning the welding ? Are there any supplementary requirements with B31.12 ? (about WPS/PQR/fabrication)
Thanks a lot for your support,
Best Regards