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Home » Fuel Specifications » BS 2869 Fuel Oil Specifications » C1 Grade Fuel Oil Specifications
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C1 grade fuel oil or C1 kerosene is a clean-burning oil with a high smoke point and extremely low sulphur content, making it suitable for horticulture applications to produce carbon dioxide and heat. It can also be used as a home heating oil as it produces no acidic gases on combustion.
The table below provides a detailed overview of the chemical and physical specifications of C1-grade fuel oil.
You can learn more about these standards in our fuel specification guide.
Parameter | Unit | Minimum | Maximum | Typical |
Appearance | Clear & bright, pale yellow, free from visible sediments | |||
Char value(1) | mg/kg | – | 10 | 3 |
Copper corrosion (2 hrs at 100°C) | Class | – | 1 | 1 |
Density at 15°C | kg/m³ |  | 0.82 | 0.775 |
Distillation recovery | ||||
at 200°C | % (v/v) | 15 | 60 | – |
at 240°C | % (v/v) | 50 | – | – |
Final boiling point | °C | – | 280 | – |
Flashpoint (PMCC) | °C | 43 | – | – |
Gross calorific value(2) | J/g | – | – | 46,500 |
Kinematic viscosity at 40°C | mm²/s | – | 2 | 1.1 |
Net calorific value(2) | J/g | – | – | 43,000 |
Smoke point | mm | 34 | – | – |
Sulphur | % (m/m) | – | 0.04 | <0.04 |
Water content | mg/kg | – | 200 | <100 |
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Download C1 Grade Fuel Oil Specifications in PDF here.
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