Although temp will increase the pressure inside the tank, there are a few things that will give you some comfort:
1. The tanks are over-engineered - as the article states. I don't know about
CO2 tanks for fire extinguishers, soda machines, etc. But in hospital settings, the
CO2 &
O2 tanks are one & the same, they are differentiated by the threading on the neck so only a specific regulator will fit. At any rate, the tanks are rated at over 2000 psi (
O2 tanks operates at 1600 psi). This is far higher than what the
CO2 will reach with normal ambient pressure. <There should be a DOT number stamped on your tank. There should be a max. temp rating in that number. So you can sleep at night, you might just check the number & make sure it is higher than the max
CO2 pressure.>
2. Most tanks have a pressure relief valve to prevent catastrophic failure.