The roles of Visual Inspector & Examiner in B31.3 piping

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To understand what certification is needed for the visual examination of welds under ASME B31.3, it is critical to distinguish between the two (2) distinct roles defined by the Code:
1) the Examiner and
2) the Inspector

While in fact, B31.3 requires 100% visual examination of fabrication (341.4.1), the “certification” depends on which of these two roles you are fulfilling.

Let’s discuss the role of the Examiner first:

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