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
The surface must have a minimum white light intensity of 350 lx , though 500 lx is recommended for better visibility.
For direct inspection, the eye should be within 600 mm of the surface. iso 17637 pdf
The angle of the eye relative to the surface should not be less than 30° .
To ensure accuracy, ISO 17637 mandates specific environmental and physical conditions for the inspector: is the internationally recognized standard for the visual
The standard applies to the visual inspection of welds the welding process:
Checking joint preparation, cleanliness, and assembly. Scope and Application The surface must have a
If direct access is blocked, the standard allows for mirrors, boroscopes, fiber-optic cables, or cameras. 3. Personnel and Equipment
Assessing the finished weld's profile, dimensions, and surface integrity. 2. Key Technical Requirements
