EN 14214
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EN 14214 is an international standard that describes the minimum requirements for Biodiesel.
Biodiesel is a fuel, comparable to petrodiesel, that is produced, not from a fossil fuel, but from a renewable fuel such as rapeseed, soy, jatropha or other virgin biomass, UCO (used-cooking oil), MSW (municipal solid waste), or from any viable fuel stock. Pure biodiesel (known as B100) consists of fatty acid methyl esters (FAME), from the isomers of glycerides C14 up to C24.
Depending on the feedstock the distribution tends to be around C16 (Palmitic), Oleic (C18:1), Linoleic (C18:2), and others. The FAME content can be determined by Gas Chromatography using the European Norm 14103 methodology or similar ASTM method. Other methods for determining specifications are detailed in EN 14214 in each case with appropriate reference.
The European Standard was approved by CEN (European Committee for Standardization) on 14 February 2003[1]. The date, when the standard came to effect, varies depending on the country (eg. Finland 8 March 2004).
It is broadly based on DIN 51606. The ASTM and EN both utilise very similar methods for the GC based analyses, in particular the methanol content EN method is deemed acceptable to use by the ASTM.
Blends are designated as "B" followed by a number. B99 is 99% pure biodiesel and 1% petrodiesel. B20 is 20% renewable biodiesel and 80% fossil fuel. The toxicity of the fuel goes up as the proportion of biodiesel goes down.
Contents |
[edit] Specifications
| Property | Units | lower limit | upper limit | Test-Method |
|---|---|---|---|---|
| Ester content | % (m/m) | 96,5 | - | pr EN 14103d |
| Density at 15°C | kg/m³ | 860 | 900 | EN ISO 3675 / EN ISO 12185. |
| Viscosity at 40°C | mm²/s | 3,5 | 5,0 | EN ISO 3104 |
| Flash point | °C | > 101 | - | ISO CD 3679e |
| Sulfur content | mg/kg | - | 10 | - |
| Tar remnant (at 10% distillation remnant) | % (m/m) | - | 0,3 | EN ISO 10370 |
| Cetane number | - | 51,0 | - | EN ISO 5165 |
| Sulfated ash content | % (m/m) | - | 0,02 | ISO 3987 |
| Water content | mg/kg | - | 500 | EN ISO 12937 |
| Total contamination | mg/kg | - | 24 | EN 12662 |
| Copper band corrosion (3 hours at 50 °C) | rating | Class 1 | Class 1 | EN ISO 2160 |
| Thermal Stability | - | - | - | - |
| Oxidation stability, 110°C | hours | 6 | - | EN 14112 |
| Acid value | mg KOH/g | - | 0,5 | pr EN 14104 |
| Iodine value | - | - | 120 | pr EN 14111 |
| Linolenic Acid Methylester | % (m/m) | - | 12 | pr EN 14103d |
| Polyunsaturated (>= 4 Double bonds) Methylester | % (m/m) | - | 1 | pr EN 14103 |
| Methanol content | % (m/m) | - | 0,2 | pr EN 14110l |
| Monoglyceride content | % (m/m) | - | 0,8 | pr EN 14105m |
| Diglyceride content | % (m/m) | - | 0,2 | pr EN 14105m |
| Triglyceride content | % (m/m) | - | 0,2 | pr EN 14105m |
| Free Glycerine | % (m/m) | - | 0,02 | pr EN 14105m / pr EN 14106 |
| Total Glycerine | % (m/m) | - | 0,25 | pr EN 14105m |
| Alkali Metals (Na+K) | mg/kg | - | 5 | pr EN 14108 / pr EN 14109 |
| Phosphorus content | mg/kg | - | 10 | pr EN14107p |
[edit] See also
- ASTM D6751: the standard used in USA and Canada
- EN
- EN 590
- List of EN standards
[edit] References
- ^ source: the EN 14214-standard
