Preservation tube is also called freezing tube, which is mainly used for low-temperature transportation and storage of biological materials. Preservation tube is generally used for cryopreservation of laboratory cells. Generally used in biology, medicine, food industry.

There is no strict classification of Preservation tubes. They are generally divided according to capacity, such as 0.5ml, 1.0ml, 1.5ml, 1.8ml, 2.0ml, 4ml, 5ml, 7ml, 10ml, etc. Ordinary Preservation tubes cannot be put into liquid nitrogen, only those processed with special materials can be put in. At the same time, the Preservation tube also has double-layer and no double-layer silicone pads and non-silicone pads, as well as colorless, variegated, and various solid colors. These are based on experimental needs or convenience for each manufacturer. Designed, there is no division in the strict sense.

When buying, you should choose a suitable Preservation tube according to your needs. Is it normal or requires it to enter the liquid nitrogen? If you need to enter the liquid nitrogen storage, you must choose a sealed, low-temperature-resistant special cryotube, and also recognize whether the purchased Preservation tube is sterile and free of DNA and RNA. In addition, if it is newly bought, it can be used directly if it has not been opened outside. If it has been opened outside, the high pressure is applied.