Using a "free" PDF found on the web carries significant risks for engineering projects:
Need a quick reference? Remember: EN ISO 17660-1 = welding rebar for load-bearing structures. Part 2 covers non-load-bearing welded reinforcement. Always check the latest edition—as of 2025, the 2006 version remains current, but verify with your national standards body. en iso 17660-1 pdf
A major section of the standard deals with who is allowed to weld. It mandates that welders must be qualified according to . The PDF outlines the specific tests a welder must pass to be certified for different rebar diameters and welding positions. Using a "free" PDF found on the web
and excludes factory mass production of lattice girders using multiple spot welding machines. ISO - International Organization for Standardization Essential References & Documents the 2006 version remains current