wsmith22
Mechanical
- Nov 9, 2005
- 67
We have a customer asking for PMI testing to verify 316/316L stainless steel materials in a pressure vessel with the ASME SA specification limits. They want to include the PMI tester accuracy in the results. For example, if the accuracy of the tester is +/-0.1 for Cr and the SA specification requires 16.00-18.00, I assume we would need the tester to read between 16.1-17.9 for a match. Would this be correct?
I don't know if this is the standard way to use the tester because the accuracy is narrowing the actual specification range. From what I have read, the testers have algorithms that determine the best match based on the combination of elements.
I don't know if this is the standard way to use the tester because the accuracy is narrowing the actual specification range. From what I have read, the testers have algorithms that determine the best match based on the combination of elements.