Specification and approval of welding procedures for metallic materials. Welding procedure test for pipeline welding on land and offshore site butt welding of transmission pipelines— 22 стр.
Welding consumables. Test methods and quality requirements. Primary methods and conformity assessment of consumables for steel, nickel and nickel alloys— 44 стр.
Water-tube boilers and auxiliary installations. Requirements for flue gas DENOX-systems using liquified pressurized ammonia and ammonia water solution— 28 стр.
