EN 590

EN 590 is a European standard that defines the quality and characteristics of automotive diesel fuel. Established by the European Committee for Standardization (CEN), this standard ensures diesel fuel consistency across Europe, setting out specific parameters for properties like sulfur content, density, and cetane number. EN 590 is crucial in shaping diesel fuel regulations and is closely aligned with environmental and emission requirements. Key Specifications of EN 590 1. Sulfur Content: EN 590 diesel has a maximum sulfur content of 10 ppm (parts per million), known as “ultra-low sulfur diesel” (ULSD). This low sulfur level helps reduce emissions and is compatible with diesel particulate filters (DPFs) and other modern emission control technologies. 2. Cetane Number: The cetane number in EN 590 is set at a minimum of 51, which helps ensure efficient combustion, reduces engine knocking, and improves cold-start performance.