The European EN 13445 series of standards for the design, construction, inspection and testing of unfired pressure vessels made from steels and steel casting is supplemented with a further part.
EN 13445-15 “Specific requirements for hydrogen applications“
Status: In preparation of CEN (European Committee for Standardization)
Content of EN 13445-15
Part 15 of this series of standards will supplement the previous parts EN 13445-1, EN 13445-2, EN 13445-3, EN 13445-4, EN 13445-5, EN 13445-8, EN 13445-10 and EN 13445-11 with regard to hydrogen service applications.
EN 13445-15 distinguishes between four services/damage mechanisms, which might exist in combinations:
– Low temperature service;
– Hydrogen Environmental Embrittlement (HEE) or Hydrogen-induced cracking (HIC);
– High Temperature Hydrogen Attack (HTHA);
– Hydrogen service with cyclic loads (fatigue).
EN 13445-15 will not cover corrosion such as electro-chemical corrosion of metals under participation of hydrogen (e.g. sour gas).
This addition will take into account the future importance of hydrogen applications such as the
- production of hydrogen
- transport of liquid and gaseous hydrogen
- storage of liquid and gaseous hydrogen
- plants producing hydrogen, carbon monoxide and synthesis gas (commonly known as HyCO Plants)
Terms in connection with hydrogen applications
Terms about damage mechanisms are explained in a separate technical article.
Another technical articles deals with the high temperature hydrogen attack (HTHA) mechanism, which occurs at high temperatures and high hydrogen partial pressures.
Read More
High temperature hydrogen attack (HTHA) of steels
Qualification of line pipes for pressurised hydrogen applications
