Liquid Nitrogen Tank Should Be Checked Before Use

    Before the liquid nitrogen tank is put into use, it shall be examined and checked for its appearance, signage, product certification, and instructions for use. The pressure gauge of the liquid nitrogen container shall be periodically sent to the metrological verification agency for inspection before being used.

    Safety devices such as safety valves and bursting discs of the containers must be kept in good condition to ensure that no abnormalities can be put into use.