Discover the fuel specifications for biodiesel B100
Biodiesel B100 (FAME) is a first-generation, pure biodiesel derived from vegetable oils, meaning it’s compatible with most diesel engines.
Often referred to as B100, pure, or neat biodiesel in its unblended form, it is used to fuel compression-ignition engines and is typically used as a blend stock to produce lower percentage blends.
B100 requires special handling and some equipment modifications. To avoid engine operational problems, it must meet the requirements of ASTM D6751, Standard Specification for Biodiesel Fuel Blendstock B100 for Middle Distillate Fuels.
Biodiesel B100 specification
The table below shows selected specification for 100% biodiesel B100 as listed in ASTM D6751.
| Property | Test Method | Typical 100 | EN 14214 |
|---|---|---|---|
| Fatty Acid Methyl Ester (FAME) content | EN 14103 | 97.9% (m/m) | ≥96.5% (m/m) |
| Density at 15°C | EN ISO 3675 | 0.878 kg/m³ | 0.860-0.900 kg/m³ |
| Viscosity at 40°C | EN ISO 3104 | 4.4 mm²/s | 3.5-5.0 mm²/s |
| Flash point | EN ISO 3679 | 161°C | 120°C |
| Cold filter plugging point (CFPP) | EN 116 | -8°C | 0°C to -10°C |
| Sulphur content | EN ISO 20846 | 7.6 mg/kg | ≤10 mg/kg |
| Carbon residue | EN ISO 10370 | 0.002% (m/m) | ≤0.3% (m/m) |
| Sulphated ash content | ISO 3987 | ≤0.01% (m/m) | ≤0.02 (m/m) |
| Water content | EN ISO 12937 | 69 mg/kg | ≤500mg/kg |
| Oxidation stability at 110°C | EN 14112 | 7.0 Hrs | ≥4.0 Hrs |
| Acid value | EN 14104 | 0.41mg KOH/g | ≤0.50mg KOH/g |
| Iodine number | EN 14111 | 61g | ≤130g |
| Linolenic Acid Ethyl Ester content | EN 14103 | 3.2% (m/m) | ≤12.0% (m/m) |
| Fatty Acid Methyl Ester (FAME) content (min. 3 double bonds) | – | – | ≤1 (m/m) |
| Methanol content | EN 14110 | 4.69×10-4 | ≤0.20% (m/m) |
| Monoacylglycerol content | EN 14105 | 0.0711% (m/m) | ≤0.80% (m/m) |
| Diacyglycerol content | EN 14105 | – | ≤0.20% (m/m) |
| Triacyglycerol content | EN 14105 | – | ≤0.20% (m/m) |
| Free glycerol content | EN 14105 | – | ≤0.02% (m/m) |
| Total glycerol content | EN 14105 | 0.0190% (m/m) | ≤0.25% (m/m) |
To order B100 (100% biodiesel) from a leading UK fuel supplier (minimum 10,000 litres), contact the Crown Oil team today on 0330 123 1444.
