Laboratory gases are supplied in high-pressure cylinders. These cylinders present their own hazards and must be stored, handled and used with extra care. Cryogenic liquids are defined as liquids with a normal boiling point at or below -900C. These can also present their own unique hazards.
The following two standards provide guidance on how to handle these materials:
Cryogenic Liquid Handling Standard
Training
Cryogenic and Compressed Gas Safety (SO1030)