Inspectioneering has recently published a blog post titled “API 510 Pressure Vessel Inspection Code: FFS Evaluation of Widely Scattered Pits.” Click the link above to read the full article.

Introduction:

API 579-1/ASME FFS-1, Part 6 defines pitting as:

“localized regions of metal loss that can be characterized by a pit diameter on the order of the plate thickness or less, and a pit depth that is less than the plate thickness.”

The fitness-for-service (FFS) assessment procedures in Part 6 can be
Source: NDT