Qualification testing of welders for underwater welding - Part 1: Hyperbaric wet welding (ISO 15618-1:2016); German version EN ISO 15618-1:2016— 35 стр.
Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2017, corrected version 2017-10)
Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2017,Corrected version 2017-10-01)