Two bars are aligned end-to-end.
A critical distinction is made between the two parts of the standard: Part 1 (ISO 17660-1) load-bearing joints used to transmit design loads. Part 2 (ISO 17660-2) non-load-bearing
Understanding EN ISO 17660-1: The Standard for Welding Reinforcing Steel
The official PDF can be purchased from national standards bodies such as the British Standards Institution (BSI), Deutsches Institut für Normung (DIN), or other authorized resellers.
The standard applies to both workshop and on-site welding of weldable and stainless reinforcing steel. It is specifically restricted to static loaded structures