Cylinders in use and in storage shall be prevented from reaching temperatures in excess of ____________.

Cylinders in use and in storage shall be prevented from reaching temperatures in excess of ____________.

• A. 120ºF
• B. 125ºF
• C. 130ºF
• D. 150ºF

Answer: (B)

Heat inside a cylinder increases the pressure of its contents. To prevent dangerous overpressure and potential cylinder failure, the maximum allowable temperature for cylinders in use and in storage is 125ºF (about 52°C). Keeping them at or below this limit helps ensure the safety of the cylinder, its valve, and any safety relief devices, and reduces the risk of leaks, rupture, or fire hazards. Temperatures above this exceed the safe limit and raise the pressure to dangerous levels.

Heat inside a cylinder increases the pressure of its contents. To prevent dangerous overpressure and potential cylinder failure, the maximum allowable temperature for cylinders in use and in storage is 125ºF (about 52°C). Keeping them at or below this limit helps ensure the safety of the cylinder, its valve, and any safety relief devices, and reduces the risk of leaks, rupture, or fire hazards. Temperatures above this exceed the safe limit and raise the pressure to dangerous levels.