2021DS/EN 1254-1:2021 Copper and copper alloys – Plumbing fittings – Part 1: Capillary fittings for soldering or brazing to copper tubes
1999DS/EN 1254-1:1999 Copper and copper alloy - Plumbing fittings - Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes