Liquid nitrogen tanks are available in small and large tanks, with the smaller tanks storing small amounts of samples and being more portable.
The large tanks are suitable for long-term static storage and larger batches for putting samples in, just like the vapour phase liquid nitrogen storage units.
Named for its suitability for storing stem cells and strains of bacteria, it is also known as a liquid nitrogen tank for biological sample storage.
Conventional liquid nitrogen tanks, i.e. smaller compared to vapour phase liquid nitrogen storage equipment, all with attention to thermal ventilation of the storage environment.
And of course there is!
Although it is a vapour phase storage model, liquid nitrogen is also used as a ‘refrigerant’ and is constantly being lost through evaporation, even if the rate of loss is slow, nitrogen will always ‘drift’ out when the cap is opened to store the sample. Nitrogen enters the air and robs oxygen, so for safety reasons it should still be stored in a ventilated and cool place.
This environment is also more conducive to sample preservation and avoids some pointless loss of liquid nitrogen.
In addition, due to the volume, vapour phase liquid nitrogen storage equipment storage also needs to consider the size of the space, especially the door width, too narrow door stem cell sample storage can not enter, after all, its volume are in more than 350 litres, the large reached 1800 litres, the height and width are much larger than the conventional liquid nitrogen tanks.