🔍 NDT Methods & Acceptance Criteria Across Codes: A Quick Guide for Engineers In pressure equipment and piping industries, Non-Destructive Testing (NDT) plays a crucial role in ensuring the integrity and safety of components. Different codes and standards define how these tests are applied and what acceptance criteria must be met. Below is a summary of the main NDT methods and their references: | Welding Fabrication World

Visual inspection is the most important step in welding quality control. Before NDT, inspectors rely on simple but effective tools like welding gauges, borescopes, flashlights, and proper lighting conditions. As per BS EN ISO 17637, correct eye distance, viewing angle, and illumination make a huge difference in defect detection. From checking weld size and alignment to inspecting restricted areas, visual examination saves time, cost, and rework. Mastering these basics is essential for every weld