Residual Marine Fuels

 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 

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