GOST R 50.05.04-2018 核能使用符合性评估系统. 测试形式的符合性评估. 统一程序. 奥氏体钢焊接接头超声波探伤
Conformity assessment system for the use of nuclear energy. Conformity assessment in the form of examination. Unified procedures. Ultrasonic examination of austenitic steel welded joints