A: Yes. EN ISO 17660-1 requires that you qualify your welding procedure using ISO 15614-1: Metal arc welding of steels. You should purchase that PDF as a companion document.
Once you have your en iso 17660-1 pdf, avoid these frequent errors:
If you have access to the document, here is a workflow for applying it to your project: en iso 17660-1 pdf
If you open the EN ISO 17660-1 PDF, here’s what you’ll find that changes how you weld rebar:
There is a legal way to view the content without buying a copy. Many national libraries and university engineering departments subscribe to the ISO Online Browsing Platform (OBP). You can: A: Yes
Limitation: You cannot print, download, or save the file. But for a quick cross-check of a preheat temperature or test requirement, this is free and legal.
This is the most referenced section by site engineers. The standard provides specific "Acceptance Criteria" for visual defects. It tells you exactly what is allowed and what is a reject: Limitation: You cannot print, download, or save the file
Let’s cut through the jargon. EN ISO 17660-1 is the European adoption of an international standard that specifies requirements for welding of reinforcing steel. Specifically, Part 1 covers load-bearing welded joints—the welds that actually hold structural weight.
Think of it as the rulebook for:
The standard applies to weldable reinforcing steel bars and wires used in concrete structures, from high-rise buildings to highway bridges and tunnel segments.
The acceptance criteria are strict: maximum undercut depth, number of pores per inch of weld, and allowable spatter. The PDF gives you the numbers, not just advice.