Heavy Fuel Oil (HFO) according to ISO 8217
Heavy fuel oil (HFO) is a residual oil from distillation and/or the cracking system of natural gas processing and serves as fuel for marine diesel engines and steam locomotives with primary oil combustion. The international trading description of such an oil is: Marine (Residual) Fuel Oil (MFO) sometimes also the US description Bunker C.
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Analysis of Heavy Fuel Oils according to ISO 8217
We examine heavy fuel oils according to the ISO 8217 under the following points:
- Density at 15°C
- Viscosity at 50°C, Viscosity at 100°C
- Pourpoint
- Coke residue
- Ash content
- Water content (xylol distillation)
- Sulphur content
- Vanadium, Nickel, Aluminium
- Sediment content (insoluble parts)
- Asphalt content
Heavy Fuel Oil Specification
We have taken the following table from Wikipedia:
| Parameter | Unit | Limit | RMA 30 | RMB 30 | RMD 80 | RME 180 | RMF 180 | RMG 380 | RMH 380 | RMK 380 | RMH 700 | RMK 700 |
| (Int. indicator) | IFO 180 | IFO 180 | IFO 380 | IFO 380 | ||||||||
| Density (15°C) | kg/L | Max | 0.960 | 0.975 | 0.980 | 0.991 | 0.991 | 0.991 | 0.991 | 1.010 | 0.991 | 1.010 |
| Viscosity at 50°C | mm²/s | Max | 30.0 | 30.0 | 80.0 | 180.0 | 180.0 | 380.0 | 380.0 | 380.0 | 700.0 | 700.0 |
| Water | % (V/V) | Max | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Sulphur | % (m/m) | Max | 3.5 | 3.5 | 4.0 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| MCR | % (m/m) | Max | 10 | 10 | 14 | 15 | 20 | 18 | 22 | 22 | 22 | 22 |
| Aluminium + Silicon | mg/kg | Max | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Flash point | °C | Min | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Pourpoint, Summer | °C | Max | 6 | 24 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Pourpoint, Winter | °C | Max | 0 | 24 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Total Sediment Potential(TSP) | %wt | Max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |