FUEL STANDARDS BASIC INFORMATION AND TUTORIALS


Standards that regulate minimum requirements are indispensible for communication between engine manufacturers and fuel producers, retailers and consumers. Here too, much has changed positively in terms of suitability and environmental compatibility.

While every country formerly had its own specifications, the standard EN 590 has been in effect for all of Europe since 1993 [4-1] and applies to all the countries represented in the European Committee for Standardization (CEN).

However, every country may enact (additional) individual regulations in a national appendix. Special classes specifying flow characteristics during cold weather with correspondingly low CFPP (cold filter plugging point) and CP (cloud point) were implemented for arctic countries.

EN 590 has largely defined every relevant fuel parameter at a relatively high level of quality. The most recent version from 2008 is currently undergoing the process of adoption.

Diesel fuel quality: Minimum requirements according to DIN EN 590: 2008–2009

Regular revision of the standards and the test methods applied guarantees the inclusion of new or modified criteria for requirements. For instance, wear protection (lubricity) and limits on polyaromatics have been newly incorporated in recent years.

The test methods applied in the standard and to ongoing quality control are also based on standardized laboratory methods. By performing extensive tests in complete engines for example, working groups from the engine and petroleum industry and independent institutes ensure that the standardized methods are relevant to the application of fuel in vehicles.

EN 590 contains legal regulations from EU directives and compromises negotiated between the automotive and petroleum industries in the CEN working group TC19/ WG24.

Furthermore, the German government has enacted the Fuel Quality Act and related provisions for its implementation. State authorities are able and required to review the conformity of fuels offered for public purchase to the standards.

These efforts are aimed at ensuring that customers who purchase fuel with an EN 590 designation can be confident that the fuel is suitable for their engines and is environmentally compatible.


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