ISO 17637:2016 establishes international standards for the non-destructive visual testing (VT) of fusion-welded joints in metallic materials, outlining requirements for inspection before, during, and after welding. The standard specifies key conditions, including a minimum 350 lx illumination, a maximum viewing distance of 600 mm, and a minimum viewing angle of 30° to the surface, while requiring compliance with WPS specifications. For more details, visit ISO 17637:2016 - Visual testing of fusion-welded joints
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The standard specifies strict environmental and procedural conditions to ensure inspection accuracy: Illumination : A minimum light level of is required on the surface, though is recommended for better visibility. : The inspector's eye should generally be within ISO Store (www
Instant Searchability: Finding specific criteria for "fusion-welded joints" in seconds. ISO Store (www.iso.org) – official
Direct Inspection: For accurate results, the eye should be within 600 mm of the surface at an angle of no less than 30°.
When people search for an ISO 17637 pdf, they often assume it contains the "pass/fail" criteria for a weld. It does not.
Latest Official Version: You can purchase or view the full current standard (ISO 17637:2016) at the ISO Online Store.