12 gram CO2 cart. pressure?

[Skinny 1950]

I have never read how much pressure there is in a standard 12 gram cartridge at room temperature, does anyone know (in p.s.i. ).............

 

[CanAm]

I have never read how much pressure there is in a standard 12 gram cartridge at room temperature, does anyone know (in p.s.i. ).............

~860 at 21C, same as any liquid co2 in a bottle. Also depends on altitude.