Verifying cleanliness between runs and identifying visible defects as the weld is built.
is the internationally recognized standard for the visual testing (VT) of fusion-welded joints in metallic materials. It serves as a foundational document for non-destructive testing (NDT), outlining the rules, conditions, and procedures required to ensure welds are inspected consistently across industries such as construction, shipbuilding, and pipeline fabrication. 1. Scope and Application iso 17637 pdf
If direct access is blocked, the standard allows for mirrors, boroscopes, fiber-optic cables, or cameras. 3. Personnel and Equipment outlining the rules
To ensure accuracy, ISO 17637 mandates specific environmental and physical conditions for the inspector: the standard allows for mirrors
Checking joint preparation, cleanliness, and assembly.