ISO 21266-1:2018
Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel systems - Part 1: Safety requirements

Standard No.

ISO 21266-1:2018

Release Date

2018

Published By

International Organization for Standardization (ISO)

Latest

ISO 21266-1:2018

Scope

This document specifies the minimum safety requirements applicable for the functionality of compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends on-board fuel systems intended for use on the types of motor vehicles defined in ISO 3833. It is applicable to vehicles using compressed gaseous hydrogen (CGH2), in accordance with ISO 14687-1 and ISO/TR 15403-2. It is not applicable to the following: 1) liquefied hydrogen (LH2) fuel system components; 2) fuel containers; 3) stationary gas engines; 4) container mounting hardware; 5) electronic fuel management; 6) refuelling receptacles; and 7) fuel cell vehicles. NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this document and tested according to the appropriate functional tests. NOTE 2 All references to pressure in this document are considered gauge pressures unless otherwise specified. All matters relating to the skills of installers and converters have been excluded from this document.

ISO 21266-1:2018 Referenced Document

• IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
• ISO 1176:1990 Road vehicles; masses; vocabulary and codes
• ISO 12619-10:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 10: Pressure relief device (PRD)
• ISO 12619-11:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 11: Excess flow valve
• ISO 12619-12:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 12: Gas-tight housing and ventilation hoses
• ISO 12619-13:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 13: Rigid fuel line in stainless steel
• ISO 12619-14:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 14: Flexible fuel line
• ISO 12619-15:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 15: Filter
• ISO 12619-16:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 16: Fittings
• ISO 12619-1:2014 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel system components - Part 1: General requirements and definitions
• ISO 12619-2:2014 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel system components - Part 2: Performance and general test methods
• ISO 12619-3:2014 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel system components - Part 3: Pressure regulator
• ISO 12619-4:2016 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components - Part 4: Check valve
• ISO 12619-5:2016 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components - Part 5: Manual cylinder valve
• ISO 12619-6:2017 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel system components - Part 6: Automatic valve
• ISO 12619-7:2017 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components- Part 7:Gas injector
• ISO 12619-8:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 8: Pressure indicator
• ISO 12619-9:2017 Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 9: Pressure relief valve (PRV)
• ISO 14687-1:1999 Hydrogen fuel - Product specification - Part 1: All applications except proton exchange membrane (PEM) fuel cells for road vehicles
• ISO 14687-2:2012 Hydrogen fuel - Product specification - Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles
• ISO 16380:2014 Road vehicles - Blended fuels refuelling connector
• ISO 17268:2012 Gaseous hydrogen land vehicle refuelling connection devices
• ISO 19881:2018 Gaseous hydrogen — Land vehicle fuel containers*， 2018-10-18 Update
• ISO 20653:2013 Road vehicles - Degrees of protection (IP code) - Protection of electrical equipment against foreign objects, water and access
• ISO 21266-2:2018 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel systems - Part 2: Test methods

ISO 21266-1:2018 history

• 2018 ISO 21266-1:2018 Road vehicles - Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel systems - Part 1: Safety requirements