Cathodic protection of buried or immersed metallic structures - General principles and application for pipelines; German version EN 12954:2001— 29 стр.
Gas infrastructure - Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations - Part 2: Detailed functional requirements for commissioning, operation and maintenance— 24 стр.
Corrosion of metals - Corrosion likelihood of metallic materials when subject to corrosion from the outside - Part 3: Buried and underwater pipelines and structural components— 21 стр.
