What kind of containers are atmospheric liquid nitrogen tanks classified into?

Atmospheric liquid nitrogen storage tanks are widely used in medical treatment, scientific research, animal husbandry and mechanical processing. Liquid nitrogen is mainly used as a "refrigeration medium" to preserve biological samples, animal semen, strains, etc. It is also used for cryogenic treatment and assembly of metal materials and precision parts.

Liquid nitrogen biological container

In what container are atmospheric liquid nitrogen tanks classified?

Atmospheric liquid nitrogen tanks are produced according to the national standard GB/T5458 Liquid Nitrogen Biological Containers.

The standard 1 specifies the terminology, definition, classification, technical requirements, experimental methods, inspection rules, marking, packaging and storage requirements of liquid nitrogen biological containers made of aluminum and aluminum alloys.

Standard 2 stipulates that it is suitable for atmospheric storage of liquid nitrogen, with an effective volume of 2 liters to 175 liters and a diameter of 50mm to 2 10mm, and adopts a high vacuum multi-layer insulation container.

Standard 3 stipulates that liquid nitrogen storage tanks are divided into storage type and transportation type.

Storage type, liquid nitrogen storage time is long, suitable for indoor long-term static storage;

Transport type, supported at the bottom and side, can be transported over a long distance or stored indoors.

Standard 4 is applicable to the aluminum liquid nitrogen biological containers used by animal husbandry and medical research departments to store biological samples such as semen and vaccines with liquid nitrogen as the "refrigeration medium".

Therefore, atmospheric liquid nitrogen tank is also called "liquid nitrogen biological container".