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ISO 15500-19:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 19: FittingsISO 15500-2:2016PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 2: Performance and general test methodsISO 15500-1:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 1: General requirements and definitionsISO 15500-20:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 20: Rigid fuel line in material other than stainless steelISO 15500-7:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 7: Gas injectorISO 15500-8:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 8: Pressure indicatorISO 15500-10:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 10: Gas-flow adjusterISO 15500-11:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 11: Gas/air mixerISO 15500-12:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 12: Pressure relief valve (PRV)ISO 15500-15:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 15: Gas-tight housing and ventilation hoseISO 15501-1:2025PublishedRoad vehicles — Compressed natural gas (CNG) fuel systems — Part 1: Safety requirementsISO 15501-2:2025PublishedRoad vehicles — Compressed natural gas (CNG) fuel systems — Part 2: Test methodsISO 16332:2018PublishedDiesel engines — Fuel filters — Method for evaluating fuel/water separation efficiencyISO 17268-1:2025PublishedGaseous hydrogen land vehicle refuelling connection devices — Part 1: Flow capacities up to and including 120 g/sISO 18418-1:2026PublishedGasoline engines — High pressure liquid fuel supply connections — Part 1: 60° concave cone connectorsISO 18418-2:2022PublishedGasoline engines — High pressure liquid fuel supply connections — Part 2: Pipe assembliesISO 19078:2013PublishedGas cylinders — Inspection of the cylinder installation, and requalification of high pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehiclesISO 19438:2023PublishedDiesel fuel and petrol filters for internal combustion engines — Filtration efficiency using particle counting and contaminant retention capacityISO 19723-1:2025PublishedRoad vehicles — Liquefied natural gas (LNG) fuel systems — Part 1: Safety requirementsISO 19723-2:2025PublishedRoad vehicles — Liquefied natural gas (LNG) fuel systems — Part 2: Test methodsISO 19724:2020PublishedGasoline engines with direct injection — Cleanliness assessment of fuel injection equipmentISO 19825:2018PublishedRoad vehicles — Liquefied petroleum gas (LPG) refuelling connectorISO 19880-7:2025PublishedGaseous hydrogen — Fuelling stations — Part 7: Rubber O-ringsISO 19880-2:2025PublishedGaseous hydrogen — Fuelling stations — Part 2: Dispensers and dispensing systemsISO 19880-5:2025PublishedGaseous hydrogen — Fuelling stations — Part 5: Dispenser hoses and hose assemblies