Bunker Fuel is a fraction that is obtained during petroleum distillation. This term is usually used for any fuel that is used in bunkers. It is also known as a marine fuel. Bunker Fuel is mainly of two types – Distillate and Residual. Distillates are light fractions whereas Residuals are heavy fractions.

The third type of Bunker fuel is obtained by combining these two fuels. It is known as an “intermediate”. Distillate fuel is composed of light petroleum fractions that got separated in a refinery during distillation. Residual fuel is a heavy fraction that did not boil. It is also known as “Tar” or “Petroleum pitch”. Contact us to get a quote about this fuel.

TECHNICAL SPECIFICATIONS – MARINE DISTILLATE FUELS (ISO 8217:2012)

Sr. No. CHARACTERISTICS TEST METHOD DMX DMA DMZ DMB UNIT
1. Kinetic Viscosity @ 40°C ISO 3104 1,400 – 5,500 2,000 – 6,000 3,000 – 6,000 2,000 – 11,00 mm2/s
2. Cetane Index ISO 4264 45 Min 40 Min 40 Min 35 Min
3. Sulfur ISO 8754 or ISO 14596 1,00 Max 1,50 Max 1,50 Max 2,00 Max mass %
4. Flash Point ISO 2719 43,0 Min 60,0 Min 60,0 Min 60,0 Min °C
5. Hydrogen Sulfide IP 570 2,00 Max 2,00 Max 2,00 Max 2,00 Max mg/kg
6. Acid Number ASTM D664 0,5 Max 0,5 Max 0.5 Max 0,5 Max mg KOH/g
7. Total Sediment by hot filtration ISO 10307-1 0,10 Max mass %
8. Oxidation Stability ISO 12205 25 Max 25 Max 25 Max 25 Max g/m3
9. Carbon residue: micro method on the 10% volume distillation residue ISO 10370 0,30 Max 0,30 Max 0,30 Max mass %
10. Carbon residue: micro method ISO 10370 0,30 Max mass %
11. Cloud Point ISO 3015 – 16 Max °C
12A. Pour Point – Winter ISO 3016 – 6 Max – 6 Max 0 Max °C
12B. Pour Point – Summer ISO 3016 0 Max 0 Max 6 Max °C
13. Appearance Clear and bright Clear and bright Clear and bright Clear and bright
14. Water ISO 3733 0.30 Max Volume %
15. Ash ISO 6245 0,010 Max 0,010 Max 0,010 Max 0,010 Max mass %
16. Lubricity, corrected wear scar diameter (wsd 1,4) at 60°Ch ISO 12156-1 520 Max 520 Max 520 Max 520 Max µm

TECHNICAL SPECIFICATIONS – MARINE RESIDUAL FUELS (ISO 8217:2012)

Sr. No. CHARACTERISTICS TEST METHOD RMA 10 RMB 30 RMD 80 RME 180 RMG 180 RMG 380 RMG 500 RMG 700 RMK 380 RMK 500 RMK 700 UNIT
1 Kinetic Viscosity @ 50°C ISO 3104 10,00 Max 30,00 Max 80,00 Max 180,0 Max 180,0 Max 380,0 Max 500,0 Max 700,0 Max 380,0 Max 500,0 Max 700,0 Max mm2/s
2 Density @ 15°C ISO 3675,
ISO 12185
920,0 Max 960,0 Max 975,0 Max 991,0 Max 991,0 Max 991,0 Max 991,0 Max 991,0 Max 1010,0 Max 1010,0 Max 1010,0 Max kg/m3
3 CCAI * 850 Max 860 Max 860 Max 860 Max 870 Max 870 Max 870 Max 870 Max 870 Max 870 Max 870 Max
4 Sulfur ISO 8754,
ISO 14596
Statutory requirements
mass %
5 Flash Point ISO 2719 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min 60,0 Min °C
6 Hydrogen Sulfide IP 570 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max 2,00 Max mg/kg
7 Acid Number ASTM D664 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max 2,5 Max mg KOH/g
8 Total Sediment aged ISO 10307-2 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max 0,10 Max mass %
9 Carbon residue: micro method ISO 10370 2,50 Max 10,00 Max 14,00 Max 15,00 Max 18,00 Max 18,00 Max 18,00 Max 18,00 Max 20,00 Max 20,00 Max 20,00 Max mass %
10A. Pour Point – Winter ISO 3016 0 Max 0 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max °C
10B. Pour Point – Summer ISO 3016 6 Max 6 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max 30 Max °C
11 Water ISO 3733 0,30 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max 0,50 Max Volume %
12 Ash ISO 6245 0,040 Max 0,070 Max 0,070 Max 0,010 Max 0,100 Max 0,100 Max 0,100 Max 0,100 Max 0,150 Max 0,150 Max 0,150 Max mass %
13 Vanadium IP 501, IP 470,
ISO 14597
50 Max 150 Max 150 Max 150 Max 350 Max 350 Max 350 Max 350 Max 450 Max 450 Max 450 Max µm
14 Sodium IP 501, IP 470 50 Max 100 Max 100 Max 50 Max 100 Max 100 Max 100 Max 100 Max 100 Max 100 Max 100 Max mg/kg
15 Aluminium plus silicon IP 501, IP 470,
ISO 10478
25 Max 40 Max 40 Max 50 Max 60 Max 60 Max 60 Max 60 Max 60 Max 60 Max 60 Max mg/kg
16 Used lubricating oils (ULO):
– Calcium & Zinc
– Calcium & Phosphorus
IP 501
or
IP 470,
ISO 500
The fuel shall be free from ULO. A fuel shall be considered to contain ULO when either one of the following conditions is met:
Calcium > 30 and Zinc > 15
Calcium > 30 and Phosphorus > 15
mg/kg
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