Issuing body
EN/CEN
Latest edition
Parts 1–5, 2006
Region
Europe
Equipment items
3
Scope
Single, double and full containment refrigerated tanks for LNG, ethylene, LPG, ammonia. Operating between −165 °C and 0 °C.
Key requirements (7)
- European standard for site-built vertical cylindrical flat-bottomed steel tanks for refrigerated liquefied gases (–165 °C to 0 °C).
- 5 parts: General, Metallic, Concrete, Insulation components, Testing/commissioning.
- Containment categories: single, double, full, membrane.
- Inner tank materials: 9 % Ni (X8Ni9), austenitic SS, aluminum alloys depending on temperature.
- Annular space insulation: perlite + resilient blanket; required vapor seal at outer wall.
- Acceptance: hydrotest + pneumatic + cool-down + commissioning.
- Counterpart to API 625 in European market; widely cited globally for LNG storage.
Note
Primary European cryogenic site-built tank standard; widely referenced globally.
Related standards (3)
Applied to 3 equipment items
Cryogenic & Refrigerated Storage