fuel oil, also called furnace oil, fuel consisting mainly of residues from crude-oil distillation. It is used primarily for steam boilers in power plants, aboard ships, and in industrial plants. Commercial fuel oils usually are blended with other petroleum fractions to produce the desired viscosity and flash point Fuel oils are complex and variable mixtures of alkanes and alkenes, cycloalkanes and aromatic hydrocarbons, containing low percentages of sulfur, nitrogen and oxygen compounds. The term fuel oil generally includes any liquid fuel that is burned in a furnace or boiler to generate heat, or used in an engine to generate power. However, it does not usually include other liquid oils, such as those with a flash point of approximately 42 °C (108 °F), or oils burned in cotton- or wool-wick burners.
| TEST | METHOD | Specification | |
|---|---|---|---|
| MV2 GRADE | HV GRADE | ||
| Relative Density at 15/15°C | IS 1448 P :16 or 32 | To be reported | To be reported |
| Water Content, %v | IS 1448 P :40 | Max. 1.0 | Max. 1.0 |
| Flash Point (P.M.C.C.), °C | IS 1448 P :21 | Min. 66 | Min. 66 |
| Viscosity (Kinematic)@ 50°C, cSt | IS 1448 P :25 | 125 - 180 | 180-370 |
| Sulphur, %w | ASTM D:4294 | Max. 4.0 | Max. 4.5 |
| Acidity (Inorganic), mg KOH/g | IS 1448 P :2 | NIL | NIL |
| Sediment by Extraction, %w | IS 1448 P :30 | Max. 0.25 | Max. 0.25 |
| Ash, %w | IS 1448 P :4 | Max. 0.1 | Max. 0.1 |
| Gross Cal Value (calculated), Kcal/Kg | IS 1448 P :7 | To be reported | To be reported |
| Pour Point, °C | IS 1448 P :10 | Max.27 | Max.27 |
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