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The common international standard for biodiesel is EN 14214.

There are additional national specifications. ASTM D 6751 is the most common standard referenced in the United States and Canada. In Germany, the requirements for biodiesel is fixed in the DIN EN 14214 standard and in the UK the requirements for biodiesel is fixed in the BS EN 14214 standard, although these last two standards are essentially the same as EN 14214 and are just prefixed with the respective national standards institution codes.

There are standards for three different varieties of biodiesel, which are made of different oils:

dot RME (rapeseed methyl ester, according to DIN E 51606)
dot PME (vegetable methyl ester, purely vegetable products, according to DIN E 51606)
dot FME (fat methyl ester, vegetable and animal products, according to DIN V 51606)

The standards ensure that the following important factors in the fuel production process are satisfied:

dot Complete reaction.
dot Removal of glycerin.
dot Removal of catalyst.
dot Removal of alcohol.
dot Absence of free fatty acids.
dot Low sulfur content.

Basic industrial tests to determine whether the products conform to the standards typically include gas chromatography, a test that verifies only the more important of the variables above. More complete tests are more expensive. Fuel meeting the quality standards is very non-toxic, with a toxicity rating (LD50) of greater than 50 mL/kg.



 
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Additional Biodiesel Information
arrowBiodiesel History
arrowBiodiesel Plants Summary
arrowBiodiesel Facts
arrowBiodiesel Technical Standards
arrowBiodiesel Crops Chart


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