Iso 17637 Pdf May 2026

The angle of the eye relative to the surface should not be less than 30° .

If direct access is blocked, the standard allows for mirrors, boroscopes, fiber-optic cables, or cameras. 3. Personnel and Equipment

Verifying cleanliness between runs and identifying visible defects as the weld is built. iso 17637 pdf

For direct inspection, the eye should be within 600 mm of the surface.

To ensure accuracy, ISO 17637 mandates specific environmental and physical conditions for the inspector: The angle of the eye relative to the

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 standard applies to the visual inspection of welds the welding process: It serves as a foundational document for non-destructive

Assessing the finished weld's profile, dimensions, and surface integrity. 2. Key Technical Requirements

Checking joint preparation, cleanliness, and assembly.

The surface must have a minimum white light intensity of 350 lx , though 500 lx is recommended for better visibility.