1. On the shield of the steel cylinder containing liquefied petroleum gas, there must be a stamped mark of the filling unit that fills the liquefied petroleum gas. It is strictly forbidden to change the stamped mark of the steel cylinder without authorization.
2. Steel cylinders containing liquefied petroleum gas must be qualified and within the valid inspection period. Generally, for steel cylinders containing liquefied petroleum gas below 15kg, the inspection period from the first to the third inspection is 4 years from the date of manufacture, and the validity period of the fourth inspection is 3 years; the valve seat of the gas cylinder that has passed the inspection by the statutory inspection unit There is a metal inspection mark ring on the upper cover, and the date of this inspection, the next inspection date, and the code of the inspection unit are printed on the ring.

3. Cylinders are not allowed to overfill. Overfilling will endanger the safety of the cylinder itself. It is strictly forbidden to pour the gas in the cylinder into other cylinders. It is strictly forbidden to dispose of the residual liquid in the bottle by yourself.
4. The places where liquefied petroleum gas is used must have good ventilation conditions. Do not use LPG in basements without ventilation. Because the specific gravity of liquefied petroleum gas is larger than that of air, once it leaks, it will accumulate in the basement below the outdoor ground. In addition, the ventilation is not good, it is easy to form an explosive mixture, and it will explode in case of an open flame. Pipes connected to steel cylinders shall not be laid in trenches or between interlayers of buildings.

5. Steel cylinders and stoves should be placed correctly. The steel cylinder must be placed upright, and the location of the steel cylinder should be convenient for switching operations and checking for air leakage. Cylinders should not be placed near heat sources and open flames. Steel cylinders cannot be exposed to the sun, and it is not allowed to scald the steel cylinders with boiling water or bake the steel cylinders with an open flame.
6. There is a small hole on the casing of the pressure reducing valve of the gas cylinder, which is called the breathing hole. It has a non-negligible effect on the normal operation of the pressure reducing valve, and this hole must not be blocked. If this hole is blocked, the function of the pressure reducing valve will be lost, and the liquefied petroleum gas will pass through the pressure reducing valve at high pressure, causing danger.

7. Replace the steel cylinder and install the pressure reducing valve. Do not rush to ignite and use it, but check for air leaks first. Check whether the bottle valve and pressure reducing valve are leaking; whether the rubber hose is aged, burned, cracked or connected too loosely; whether the rotary core door of the stove is tightly sealed. For these parts that are prone to air leakage, they should be smeared with soapy water one by one, and the continuous foaming is the air leakage point.
8. Do not directly strike a match or light a lighter to check for leaks. If there is a leak point, the leaked gas will be ignited, and the leaked flame formed in this way is easy to cause a fire.
9. Once a fire breaks out during use, effective measures must be taken immediately to extinguish the fire. First cut off the fire source. If there is a fire caused by connecting the rubber hose or the stove, the angle valve should be closed quickly, and the flame can be extinguished by itself. If the pressure reducing valve or angle valve catches fire, cover the ignition point with a wet towel or wet quilt to isolate it from the air, the flame will be extinguished, and then move the cylinder to a safe place. If the fire is too large to be close to the steel cylinder, try to extinguish the fire first, use fire extinguishing equipment, quickly control the fire, and minimize the accident loss.