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Grade D is a fuel category within the BS 2869 standard. Learn about Grade D fuel specifications in BS 2869 Standard.
Grade D is a high-sulphur diesel fuel with up to 1000 ppm sulphur content. It is generally used in heating applications and power generation. Owing to their high sulphur content and relatively higher emissions. They are only used in limited applications. Learn about its complete specifications as per the BS 2869 standard in the table below.
Parameter | Maximum | Minimum | Typical | Unit |
Appearance | Clear & bright, cherry red, free from visible sediments | |||
Ash content | 0.01 | – | <0.01 | % (m/m) |
Carbon | – | – | 87 | % (m/m) |
Carbon residue (Ramsbottom on 10% residue) | 0.3 | – | 0.1 | % (m/m) |
Cetane number | – | 45 | 48 | – |
Cold filter plugging point (1) Summer | -4 | – | -8 | °C |
Cold filter plugging point (1) Winter | -12 | – | -14 | °C |
Copper corrosion (3 hrs at 50°C) | 1 | – | 1a | Class |
Density at 15°C | – | 0.82 | 0.86 | kg/m³ |
Distillation recovery at 250°C | 65 | – | 42 | % (v/v) |
Distillation recovery at 350C | – | 85 | 92 | % (v/v) |
Fatty acid methyl ester (FAME) | 7 | – | <0.1 | % (v/v) |
Flashpoint (PMCC) | – | 56 | >62 | °C |
Gross specific energy (MJ/kg) | – | – | 45.4 | MJ/kg |
Gross specific energy (MJ/litre) | – | – | 38.8 | MJ/litre |
Hydrogen | – | – | 12.75 | % (m/m) |
Kinematic viscosity at 40°C | 5.5 | 1.5 | 3 | mm²/s |
Lubricity (HFRR) | 460 | – | <460 | µm |
Mean specific heat capacity over 0 – 100°C | – | – | 2.05 | KJ/kg °C |
Nitrogen | – | – | 0.01 – 0.05 | % (m/m) |
Oxidation stability 0.0 – 7.0% FAME | 25 | – | – | g/m³ |
Oxidation stability 2.0 – 7.0% FAME | – | 20 | – | h |
Particulate content | 24 | – | <10 | mg/kg |
Strong acid number | nil | – | nil | mg KOH/g |
Sulphur content | 0.1 | – | <0.098 | % (m/m) |
Volume correction factor | – | – | 0.00081 | per °C |
Water content | 200 | – | <100 | mg/kg |