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Thanks, so 10% should be alright and B31.3 is an applicable code to use. Ta

No, that's not my interest, we've carried out a G48A Test, it is simply the %age of radiography required. Should B31.3 be used for desalination piping and if so what is the level of NDT required for butt welding having assumed that the fluid is catagorised as "normal fluid service".

That pressure rating should have stated 1000 psi and not 100 psi ...oops

There is no particular code of construction for the Project, best International Standards.We are using ASME as the code for welding and inspection and testing which is why I quoted B31.3, however, it does appear to be open to interpretation as to the requirement and technique for testing and...

Where do I find the specific code for NDT, Radiography of 12" Schedule 80 butt welded super duplex? The pressure rating is up to 1000 psi and the fluid is filtered seawater. B31.3 sends me round in circles. The initial seemed pipework was 100% radiographed, there is now a requirement for butt...