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PFI ES27

2010 Edition, September 1, 2010

Complete Document

"VISUAL EXAMINATION" THE PURPOSE, MEANING AND LIMITATION OF THE TERM



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Product Details:

  • Revision: 2010 Edition, September 1, 2010
  • Published Date: September 2010
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Pipe Fabrication Institute (PFI)
  • Page Count: 5
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This guideline covers the definition, purpose and limitations of the term "Visual Examination" when it is not otherwise completely described in a code or specification.

Purpose

Visual examination is one of the most valuable methods of examination. It is easy to perform, fast, inexpensive, requires no special equipment and, when properly done, is capable of locating and subsequently eliminating a large portion of the common defects, which may occur in pipe fabrication.

Visual examination is especially useful in revealing items such as incorrect materials, surface defects in components and unacceptable weld fit-ups. Such items can be detected through visual examination prior to welding.

Visual examination should be used to detect and evaluate accessible surface defects such as cracks, undercut, overlap, surface porosity, etc. It should be used for examining appearance, cleanliness, contour and workmanship. Visual examination should also be used for the verification of final dimensions, straightness, preparation requirements and relation of procedures to materials.