Tungsten inclusions (GTAW process) or slag (SMAW/FCAW). These appear as dark, non-metallic spots.
Article 9 establishes the for visual examination of materials, components, and welds. It applies to visual examination performed as part of mandatory code examinations (e.g., pressure vessels, piping, boilers). asme section v article 9
You cannot inspect what you cannot see. Article 9 mandates that the surface be free of: Tungsten inclusions (GTAW process) or slag (SMAW/FCAW)
For the NDE professional, mastering Article 9 means understanding its limits (no acceptance criteria) and its power (the most frequent and essential examination in any pressure equipment fabrication). It applies to visual examination performed as part
Unlike other NDE methods (like Ultrasonic or Radiographic testing) that look inside the material, Visual Examination is used to determine the surface condition of a component, the alignment of mating surfaces, or the presence of leaks.
Per , examination records must include: