EN ISO 15611:2003 Specification and qualification of welding procedures for metallic materials Qualification based on previous welding experience ISO 15611:2003; Supersedes EN 288-6:1994
2003EN ISO 15611:2003 Specification and qualification of welding procedures for metallic materials Qualification based on previous welding experience ISO 15611:2003; Supersedes EN 288-6:1994