This standard specifies the minimum requirements on the cleanliness of all surfaces of cryogenic vessels and associated accessories, that are in contact with the cryogenic fluid at any expected operating conditions.
DS/EN 12300:1999 history
2006DS/EN 12300/A1:2006 Cryogenic vessels - Cleanliness for cryogenic service
1999DS/EN 12300:1999 Cryogenic vessels - Cleanliness for cryogenic service