Definition(s)
Residual Fuel
Fuel oil for combustion purposes delivered to and used on board ships with a kinematic viscosity at 40°C greater than 11.00 centistokes2 (mm2/s).
Source: Resolution MEPC.192(61), 2010 Guidelines for monitoring the worldwide average sulphur content of fuel oils supplied for use on board ships, 1 October 2010, International Maritime Organization. Regulatory Guidance