ISO 19887-1:2024

Overview

ISO 19887-1:2024 - Gaseous Hydrogen: Fuel system components for hydrogen‑fuelled land vehicles defines safety, design, testing and qualification requirements for newly produced compressed hydrogen gas fuel system components intended for land vehicles. The standard covers a comprehensive list of components (valves, injectors, sensors, lines, regulators, PRVs/PRDs, filters, fittings, housings, closures) and applies to components with nominal working pressures typically defined as H25, H35, H50, H70 (25, 35, 50, 70 MPa at 15 °C). ISO 19887-1:2024 focuses on compressed gaseous hydrogen systems (not liquid hydrogen) and excludes fuel containers, refuelling receptacles, vehicle-integrated components already covered by specific vehicle regulations, and stationary power applications.

Keywords: ISO 19887-1:2024, gaseous hydrogen, hydrogen fuel system components, hydrogen safety standards, H70, hydrogen vehicles.

Key Topics and Technical Requirements

• Component scope - check valves, manual and automatic valves (including container valves), hydrogen injectors, pressure regulators, pressure relief valves (PRV) and devices (PRD), excess flow valves, sensors, fittings, rigid and flexible fuel lines, filter assemblies, gastight housings, discharge closures.
• Pressure classes - nominal working pressure classes H25, H35, H50, H70; other pressures permitted if test requirements are met.
• Design & materials - requirements for intended use, materials selection, threaded openings, service temperatures and declared design service life.
• Risk management - Failure Modes and Effects Analysis (FMEA) and consideration of electrical equipment and connectors.
• Marking & documentation - mandatory marking, installation and component literature requirements.
• Testing & qualification - general test methods including hydrostatic strength, leakage (internal/external), excess torque and bending resistance, continuous operation, corrosion (salt spray, cyclic), UV and atmospheric exposure, automotive fluid exposure, vibration, stress corrosion cracking, hydrogen compatibility for non‑metallics, insulation and pre‑cooled hydrogen exposure.
• Quality assurance & production inspection - production inspection plans, system‑critical component inspection and external leak testing.

Practical Applications

• Ensures safe, reliable design and qualification of compressed gaseous hydrogen fuel system components for fuel cell and hydrogen internal combustion land vehicles.
• Guides design validation, supplier qualification, type testing and production acceptance testing.
• Used by component manufacturers, OEMs, test laboratories, certification bodies and procurement teams to demonstrate compliance with hydrogen safety and performance expectations.

Who should use this standard

• Hydrogen fuel system component manufacturers and suppliers
• Automotive OEM engineers and integration teams
• Test laboratories and certification bodies
• Regulatory and compliance specialists in alternative‑fuel vehicles
• Procurement and quality assurance professionals sourcing hydrogen components

Related Standards

• ISO 19882 (referenced for PRD requirements)
• UN GTR No. 13, UN Regulation No. 134, UN Regulation No. 146 (vehicle‑level regulations)
• IEC 62282‑4‑101 (fuel cell vehicle interfaces)

For anyone working on compressed gaseous hydrogen systems for land vehicles, ISO 19887-1:2024 is a core reference for component safety, testing and certification.