Why should special precautions be taken when filling propane bottles?

Why should special precautions be taken when filling propane bottles?

• A. Propane is extremely flammable at all temperatures
• B. Propane is super-cold and may cause severe freeze burns
• C. Propane is heavier than air and will pool
• D. Propane has an odor that masks leaks

Answer: (B)

Propane is extremely cold when handled as a liquid under pressure, which can cause severe freeze burns. During filling, liquid propane vaporizes rapidly, pulling heat from the bottle’s surface and from skin that comes into contact with it. That means even brief contact or touching a cold valve or fitting can cause a dangerous frostbite-like injury. Because of this, protective gloves, eye protection, and careful handling are essential, and you also want good ventilation in case of any leaks. The other hazards of propane (flammability and the fact it’s heavier than air) are important in general, but the immediate precaution during filling is to guard against cryogenic burns from the extremely cold propane.

Propane is extremely cold when handled as a liquid under pressure, which can cause severe freeze burns. During filling, liquid propane vaporizes rapidly, pulling heat from the bottle’s surface and from skin that comes into contact with it. That means even brief contact or touching a cold valve or fitting can cause a dangerous frostbite-like injury. Because of this, protective gloves, eye protection, and careful handling are essential, and you also want good ventilation in case of any leaks. The other hazards of propane (flammability and the fact it’s heavier than air) are important in general, but the immediate precaution during filling is to guard against cryogenic burns from the extremely cold propane.