What is SOLAS requirements for Fixed CO2 system?

For   cargo spaces – 30% of the volume of the largest cargo space.
  • For machinery spaces – 40% of the largest machinery space. This is excluding engine casing. 35% if including engine casing.
  • For machinery spaces – 85% of the gas discharged in 2mins.
  • Two separate controls. One control for opening the valves for the pipelines supplying the gas and the other control for releasing the gas.
  • Controls should be inside a release box well marked according to the space they release the gas in.