Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 2: Gas welding (ISO 15609-2:2001); German version EN ISO 15609-2:2001— 7 стр.
Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004); German version EN ISO 15609-1:2004— 12 стр.