What is EN ISO 31268:2018?

EN ISO 31268:2018 is a technical standard that defines requirements for the evaluation and selection of fuels for internal combustion engines. It provides guidelines and criteria for assessing the quality and performance of various types of fuel used in such engines.

Why is it important?

This standard plays a crucial role in ensuring the optimal operation and efficiency of internal combustion engines. By specifying the essential characteristics and measurements of fuel properties, EN ISO 31268:2018 helps engine manufacturers, fuel suppliers, and users to determine the suitability of different fuels for specific engine designs and applications.

Key requirements of EN ISO 31268:2018

EN ISO 31268:2018 outlines several key requirements for fuel evaluation and selection:

Fuel composition: The standard specifies the permissible range of various elements that make up the fuel, including carbon, hydrogen, oxygen, nitrogen, sulfur, and others. These limits help ensure proper combustion and minimize emissions.

Octane and cetane numbers: Octane number is relevant for gasoline engines, while cetane number matters for diesel engines. The standard sets minimum requirements for these numbers to prevent detonation or combustion problems.

Density and viscosity: These parameters influence fuel injection, atomization, and combustion characteristics. EN ISO 31268:2018 defines acceptable limits for density and viscosity to maintain engine performance.

Sulfur content: Sulfur in fuel leads to harmful emissions, so the standard sets strict limits on sulfur content, promoting cleaner and more environmentally friendly engine operation.

Conclusion

EN ISO 31268:2018 is an important technical standard that guides the evaluation, selection, and use of fuels for internal combustion engines. By defining requirements and criteria for fuel properties, it ensures optimal engine performance, efficiency, and reduced emissions. Adhering to this standard supports the development of cleaner and more sustainable transportation technologies.