EN 15491:2025 is a European standard that specifies a method for determining the total acidity of ethanol used as a blending component in petrol. This standard is crucial for ensuring the quality and performance of ethanol in fuel applications, particularly in the context of environmental regulations and fuel efficiency. Scope of EN 15491:2025 The scope of EN 15491:2025 includes several key aspects: Determination of Total Acidity: The standard outlines a specific method for measuring the total acidity of ethanol, expressed as acetic acid. This is important because the acidity level can affect the performance and stability of petrol blends. Applicable...