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Welder’s Handbook
Visual Inspection
Responsibilities & Techniques
Visual Inspection Responsibilities When Where
Final visual inspections must be performed:
The weld inspection zone:
When the weld is complete, and in the final surface and heat treated conditions
All work
Completed weld faces plus ½ inch on both sides of weld shall be visually inspected for the entire length of the weld. Gauge where the weld size visually appears to be the smallest To gauge weld size If the weld length is five feet or less, gauge a minimum of once per weld If the weld length is greater than five feet, gauge a minimum of once every five feet.
Before other NDT (when required) Before being made inaccessible for inspection
Visual Inspection Technique
What
How
In order to perform final visual inspection you need:
Distance and angle:
All work
Adequate lighting (use flashlight as needed) Weld gauges (bridge cam and finger gauges recommended) Prescription glasses (as required)
The inspector’s eyes should be within 24 inches of the surface to be inspected and At an angle of at least 30 degrees to the surface being inspected
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