Gasoil, Diesel, GOST 305-82 D2
Gasoil or D2 is the second distillate obtained from crude oil. There are varying contents of sulphur in Gasoil and D2 products that will affect when the fuel is best to use (seasons) and the cost thereof.
To ensure that clients are provided with suitable D2 products, there are ISO industry standards that suppliers must adhere to.
Gasoil
Gas oil forms part of a family of heavy oils. It is created by means of a process of fractional distillation of petroleum. It is used as a diesel fuel in heating and automotive applications.
Gas oil that is used to power off-road vehicles that are used in the industrial, commercial and agricultural communities is often called “red diesel”
Fuels and oils are taxed differently depending on their purpose – gas oil used for tractors; mowers and tippers are dyed red in order for inspectors to tell the difference. Other gas oil is considered “white diesel” as it is not dyed.
D2
This is gas oil that is the second distillate that is obtained through the processing of crude oil. Reformers and additives are not required to make use of this fuel. The version of D2 that has lower sulphur content is GOST 305-82 and it is the presentation of this to the market that has helped in a major reduction in pollution in many cities.
GOST 305-82
GOST 305-82 is D2 with lower sulphur content. GOST is a variant of Gasoil and D2 that is in line with ISO industry standards with a sulphur content of 0.02% max. This is known as Ultra Low Sulphur fuel. Low sulphur fuel is that with 0.2% sulphur content.
Specifications for Gasoil D2 L-0.02/62 / GOST 305-82
| COMPONENT | UNIT | MIN | MAX |
| Density at 20˚C | Kg / m³ | 0.870 | |
| Colour | 2.0 | ||
| Flash point, PMCC | Deg C (°C) | 57 | 62 |
| Kinematic viscosity at 20˚C | C ST | 3.0 | 6.0 |
| Pour point | Deg C (°C) | (*) | -10.0 |
| Cloud point | Deg C (°C) | (*) | -5.0 |
| Mercaptan sulphur | 0.01 | ||
| Acidity, mg / 1000 cm³ | 5 | ||
| Iodine number | g/100g | 6 | |
| Ash | %wt | 0.01 | |
| Total Sulphur | %wt | 0.02 | 0.05 |
| Copper corrosion | 3hrsat50 deg C | (typical) | 1 A |
| CCR on 10% Residues | %wt | 0.02 | |
| Cetane index | 45 | ||
| Distillation range : | |||
| - 50% Recovered Volume | deg C (°C) | 280 | |
| - 90% Recovered Volume | deg C (°C | 360 | |
| Bacteria MBC | Fibre / it | 500 | |
| - Bacteria CFU | Fibre / it | 1000 |
(*) Summer from March to October (PP – 5.0 degrees C)
Summer from March to October (CP – 0.0 degrees C)
Winter from November to February (PP –10.0 degrees C)
Winter from November to February (CP – 5.0 degrees C)