The inspector's eye should generally be within 600 mm of the weld surface.
Direct visual inspection is required whenever possible. If the weld is not accessible, indirect inspection (e.g., via mirror or borescope) must be used. 3. Inspection Stages iso 17637 pdf
The current version of this standard is , which technically revised and superseded the older ISO 17637:2003 edition. Managed by the ISO Technical Committee ISO/TC 44/SC 5 (Testing and inspection of welds), the standard establishes a uniform methodology for executing visual examinations. ISO 17637:2016 - Visual testing of fusion-welded joints The inspector's eye should generally be within 600
Assessing surface roughness, spatter accumulation, and tool marks. Critical Inspection Conditions indirect inspection (e.g.