European Welding Standards（欧洲焊接标准）.pdf

European Welding Standards John Dyson 15th March 2004 European Standards Harmonised Standards Not all EN Standards are Harmonised, only those that are considered to satisfy relevant ESRs in product directives. Harmonised standards contain an appendix Z, which defines which directives and ESRs the standard meets. For example :- EN ISO 15614 will be harmonised, but other routes for weld procedure approval may not be, such as EN ISO 15610, EN ISO 15611, EN ISO 15612 etc. ISO Standards There is a Gentleman’s agreement that attempts to make all EN standards into ISO standards and vice versa, but this does not work for all standards. Application Standards EN 13445 : Pressure Vessels ( BS 5500) EN 12952 : Water Tube Boilers ( BS 1113) EN 12953 : Shell Boilers ( BS 2 790) EN 13480 : Piping ( BS 806, Not BS 2640, BS 2971) Specifications Approval of Welding Procedures Summary of EN ISO Specifications Specifications Approval of Welding Procedures Introduction to The Specification Approval of Welding Procedures EN 288 Part 1 Will Become EN ISO 15607 Material Grouping for both Procedures and Welder Approval CR ISO 15608 this standard has no current EN equivalent Contents of a WPS EN 288 Part 2 Will Become EN ISO 15609 (Part 1 Arc, Part 2 for Gas welding) Welding Procedure Test EN 288 Part 3 will become EN ISO 15614 Part 1 (Steel and Nickel Alloys) EN 288 Part 4 will become EN ISO 15614 Part 2 (aluminium and its alloys) Other routes for procedure approval, such as previous experience, approved consumables etc. Are unlikely to become harmonised for use with the PED Specifications Approval of Welding Procedures