High Sulphur Fuel Oils are the most widely used marine fuels outside the Sulfur Emission Control Areas (SECA) zone, but from January 1st 2020 they can only be used by vessels equipped with Exhaust Gas Cleaning Systems (EGCS, known as “scrubbers”).

Our HSFO Specifications

 Characteristic  Unit Limit RMG RMK Test method reference
 Kinematic viscosity at 50°C  mm²/s max  180/380  500/700  ISO 3104 
Density at 15°C  kg/m3  max 991  1010  ISO 3675 or ISO 12185 
CCAI    max 870 870   
 Sulfur  mass %  max   Statutory requirements  ISO 8754 or ISO 14596
Flash point  °C  min  60  60  ISO 2719
Hydrogen sulfide  mg/kg  max  IP 570
 Acid Number  mg KOH/g max  2,5  2,5  ASTM D664 
 Total sediment aged  mass % max 0,1  0,1  ISO 10307-2 
 Carbon residue - micro method  mass % max  18  20  ISO 10370 

 Pour point (upper)

- winter quality

- summer quality

°C 

 

max

max 

 

30 

30

 

30

30 

 

 ISO 3016

ISO 3016

 Water volume %   max 0,5  0,5  ISO 3733 
 Ash mass %  max   0,1 0,15  ISO 6245 
 Vanadium  mg/kg max 350  450  IP 501, IP 470 or ISO 14597 
 Sodium mg/kg   max 100  100  IP 501, IP 470 
 Aluminium + silicon mg/kg  max  60  60   IP 501, IP 470 or ISO 10478

Used lubricating oils (ULO)

Calcium & Zinc

or Calcium & Phosphorus

 mg/kg  

  The fuel shall be free from ULO. 

A fuel shall be considered to contain ULO when either one of the following condition is met:

Calcium>30 & Zinc>15 or

Calcium>30 & Phosphorus>15

IP 501 or IP470

IP500