Nitrogen is a colorless, odorless, non-toxic, non-flammable, high-pressure gas stored in gas cylinders. Suffocation may be caused when the content of oxygen increases below 19.5%. Need to be equipped with a self-priming breathing mask. Bottled nitrogen products are filled with high pressure gas and should be used after decompression and pressure reduction. The cylinders used for packaging are all used for years, and any expired cylinders must be sent to a department for safety inspection before they can continue to be used. When using nitrogen in each bottle, the residual pressure in the bottle should be kept at 0.5 MPa, and the minimum pressure should not be less than 0.25 MPa. The bottle valve should be closed to ensure gas quality and safe use. Bottled nitrogen shall be stacked and stacked in transport, storage, and use. Combustible gas and combustible gas shall not be piled together. No close to open fire or heat source. Do not touch near fire, do not touch oil, do not expose to sunlight, do not re-dump, Do not strike, strictly prohibit arcing or arcing on the body of the gas cylinder, and strictly prohibit loading and unloading.

Closed operation provides good natural ventilation. Operators must be specially trained to strictly observe the operating procedures. Prevent gas from leaking into the workplace air. Lightly loaded and unloaded during transportation to prevent damage to cylinders and accessories. Equipped with leakage emergency treatment equipment. For safety, please pay attention to the above points during use.