Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network - Part 2: Automotive fuels specification

This technical specification establishes the quality requirements and testing procedures for natural gas and biomethane intended for use as vehicular fuel. The document focuses specifically on the compositional limits, performance criteria, and impurity thresholds necessary to ensure safe and efficient operation within automotive engines designed for gaseous fuels. It addresses parameters such as energy content, calorific value, and the concentration of specific contaminants that could damage fuel systems or emission control devices. The standard defines clear boundaries for gas components like methane content, sulfur compounds, and particulate matter, ensuring compatibility with modern vehicle technologies and infrastructure networks. By setting uniform benchmarks, it facilitates the integration of alternative gaseous fuels into the transportation sector while maintaining environmental compliance. The guidelines cover sampling methods and analytical techniques required to verify that the fuel meets the specified technical boundaries before it is delivered to dispensing stations. This framework supports the transition towards cleaner mobility solutions by providing a reliable basis for producers, distributors, and end-users to assess fuel quality consistently across the supply chain. Adherence to these defined parameters helps prevent operational failures and ensures the longevity of vehicle fuel systems under real-world driving conditions.