Cautionary Notes

1. Cylinders must be stored in well-ventilated areas, with a minimum distance of 1.5 meters from any fire or heat source. Cylinders are strictly prohibited from being heated with fire, boiled in water, or exposed to direct sunlight. Regular inspections of cylinder valves and pipeline joints for leaks are required to ensure airtightness. Leaks can be checked using soap water, and it is strictly forbidden to test for leaks with an open flame.

2. When lighting the device, ignite the primer first, followed by opening the gas; do not reverse the order. There should be a person in attendance during use, as leaving it unattended can prevent boiling water from spilling and extinguishing the flame, which may lead to a gas leak causing an explosion. After use, the valve must be tightly closed to prevent gas leakage.

3. The liquefied gas inside the cylinder should not be fully depleted, and a certain residual pressure must be maintained. The residual pressure should generally be greater than 49.03 kPa (equivalent to 0.5 kg/cm2, gauge pressure) to prevent air from entering the cylinder. After the LPG is used up, the remaining residue inside the cylinder is also a flammable substance and should not be disposed of casually to avoid fires caused by the flow and evaporation of the residue.

4. LPG cylinders are pressurized containers that require proper maintenance and regular inspections. Prevent the cylinders from falling or being struck during handling and use. Do not use metal tools to敲击 open the valve, and protect them from direct sunlight and prolonged exposure to rain. Cylinders should generally be inspected every 2 years.

5. Although the explosion range of liquefied petroleum gas (LPG) is not very wide, its lower limit is small, making it easy to ignite and explode upon leakage. Moreover, as LPG is heavier than air, it tends to flow downward in the air, accumulating in low-lying areas, creating a hidden hazard for gas explosions. Therefore, it's crucial to ensure proper ventilation, not just relying on window air exchange, especially for areas prone to gas leakage.

6. Upon discovering a liquefied gas leak indoors, immediately open windows and doors for ventilation, allowing the gas to disperse in the direction away from any open flame. No fire is allowed in the vicinity. Use the gas only after the fault is resolved and the distinctive odor has dissipated. Dispose of any leaked liquid on the ground by covering it with sand or earth and then removing it to a safe location. In case of a gas cylinder fire, promptly close the valve, move it to an open area outside, and extinguish the fire using dry powder extinguisher, CO2 extinguisher, or by covering it with a wet sack.

7. Educate children not to tamper with gas cylinders carelessly, and users must be aware of the safety knowledge for handling gas cylinders.