2022UNE-EN 1254-1:2022 Copper and copper alloys - Plumbing fittings - Part 1: Capillary fittings for soldering or brazing to copper tubes
1999UNE-EN 1254-1:1999 COPPER AND COPPER ALLOYS. PLUMBING FITTINGS. PART 1: FITTINGS WITH ENDs for capillary soldering or capillary brazing to copper tubes.