Definition(s)
Imperfections
Flaws or other discontinuities noted during inspection or examination that may or may not exceed the applicable acceptance criteria.
Source: API 510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. Global Standards
Imperfection
Flaws or other discontinuities noted during inspection that may be subject to acceptance criteria during an engineering and inspection analysis.
Source: API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. Global Standards
Imperfection (or Flaw)
Discontinuity or irregularity in the product.
- NOTE: For more detailed definitions and illustrations of specific imperfections, see API Std 5T1.
Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards
Imperfections
Flaws or other discontinuities noted during inspection that mayor may not exceed the applicable acceptance criteria.
Source: API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. Global Standards