BS EN ISO 15609-1. Specification and qualification of welding procedures for metallic materials. Welding procedure specification. Part 1. Arc welding— 14 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)