Refer to the Revised guidelines for the approval of equivalent
fixed gas fire-extinguishing systems, as referred to in SOLAS 74,
for machinery spaces and cargo pump rooms (MSC/Circ.848) and the Guidelines for the approval of fixed aerosol fire-extinguishing
systems equivalent to fixed gas fire-extinguishing systems, as referred
to in SOLAS 74, for machinery spaces (MSC/Circ.1007).