serves as the definitive standard for Visual Examination (VT) within the Boiler and Pressure Vessel Code (BPVC). It establishes the essential framework for identifying surface-level defects—such as cracks, leaks, or misalignment—that could compromise the integrity of industrial components. Core Scope and Applications
Items that, if changed, require requalification of the procedure (e.g., a change in the type of lighting or a change in the technique from direct to remote). asme section v article 9
As of recent updates (T-940), surface preparation is mandatory. The area must be clean, dry, and free from flux, scale, or grease that might mask defects. serves as the definitive standard for Visual Examination