A customer of ours was manufacturing some parts that have many fillet welds on them.  Their customer said they wanted one of them to go through RT (parts) and so they shot the part at a 45° angle so and centralized porosity happens to line up with the root that is always in a RT shot at that angle.  My question is how can a company shoot that shot when there are many discrepancies with the image?  in the same piece of film even there is another weld with a straight line all the way across where it fused and they didnt reject it.  Now the weld they did reject is acceptable in D1.1 if they dont call it linear because of the line.  I dont understand why they would call for a fillet RT anyways, let alone a level 3 is going to confuse fillet weld root fusion with linear porosity. Any ideas on how to work this?

Im having them send me the part and I am going to shoot it vertical down at a 90 degree angle to try and eliminate the root in the image so that only porosity will be seen.  any other ideas?

Jordan