Which statement correctly identifies the maximum permissible temperature for cylinders stored in use?

Which statement correctly identifies the maximum permissible temperature for cylinders stored in use?

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

Answer: (B)

Temperature controls the pressure inside a compressed-gas cylinder: as heat increases, the gas inside expands and pressure rises. To keep cylinders safe during use, a maximum ambient storage temperature of 125°F (52°C) is set. This limit helps prevent overpressure that could trigger venting or stress the cylinder, valves, and relief devices, and it guards against heat-related damage. So 125°F is the upper limit for cylinders stored in use. Temperatures below that (like 120°F) stay within the limit, while higher temperatures (130°F, 150°F) exceed it and should be avoided.

Temperature controls the pressure inside a compressed-gas cylinder: as heat increases, the gas inside expands and pressure rises. To keep cylinders safe during use, a maximum ambient storage temperature of 125°F (52°C) is set. This limit helps prevent overpressure that could trigger venting or stress the cylinder, valves, and relief devices, and it guards against heat-related damage. So 125°F is the upper limit for cylinders stored in use. Temperatures below that (like 120°F) stay within the limit, while higher temperatures (130°F, 150°F) exceed it and should be avoided.