Liquid nitrogen tanks are equipment used to store low-temperature frozen materials such as biological samples, cells, and tissues. They are commonly used in scientific research institutions and the biomedical field. However, when liquid nitrogen tanks are stored for too long, a series of potential problems may occur.

The main problems include liquid nitrogen evaporation, sample damage, and equipment damage.

1. Liquid nitrogen evaporation

Storing liquid nitrogen container for a long time may cause excessive evaporation of liquid nitrogen, causing the temperature inside to rise and affecting the preservation quality of frozen items.

2. Increased risk of sample damage

Over time, biological samples stored in liquid nitrogen tanks may be affected by factors such as freeze-thaw cycles and temperature changes, resulting in a decrease in sample quality or even complete failure.

3. Increased safety risk

Biological samples stored in liquid nitrogen tanks may carry various pathogens or genetic materials, and long-term storage will increase the safety risk.

4. Increased possibility of equipment damage

Liquid nitrogen biological container, as a special refrigeration equipment, requires regular maintenance and inspection to ensure normal operation. Long-term non-use or improper storage may cause problems such as loose tank structure, reduced sealing performance, and temperature control failure, which will affects the stability and preservation effect of liquid nitrogen.