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ISO 15500-5:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 5: Manual cylinder valveISO 15500-6:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 6: Automatic valveISO 15500-9:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 9: Pressure regulatorISO 15500-14:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 14: Excess flow valveISO 15500-16:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 16: Rigid fuel line in stainless steelISO 15500-18:2020PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 18: FilterISO 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 15500-20:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 20: Rigid fuel line in material other than stainless steelISO 15500-8:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 8: Pressure indicatorISO 15500-1:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 1: General requirements and definitionsISO 15500-10:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 10: Gas-flow adjusterISO 15500-7:2015PublishedRoad vehicles — Compressed natural gas (CNG) fuel system components — Part 7: Gas injectorISO 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 16183:2002PublishedHeavy duty engines — Measurement of gaseous emissions from raw exhaust gas and of particulate emissions using partial flow dilution systems under transient test conditionsISO 16185:2000PublishedRoad vehicles — Engine families for certification of heavy-duty vehicles by Exhaust emissionISO 16247:2004PublishedRoad vehicles — Detection of exhaust system leaks — Helium test method and detection device specificationISO 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 17447-1:2022PublishedRoad Vehicles — Glow plugs with conical seating and their cylinder head housing — Part 1: Basic characteristics and dimensions for metal-sheath-type glow plugsISO 17447-2:2015PublishedRoad Vehicles — Glow-plugs with conical seating and their cylinder head housing — Part 2: Basic characteristics and dimensions for ceramic-sheath-type glow-plugs