ISO 19887-1:2024
(Main)Gaseous Hydrogen - Fuel system components for hydrogen-fuelled vehicles - Part 1: Land vehicles
Gaseous Hydrogen - Fuel system components for hydrogen-fuelled vehicles - Part 1: Land vehicles
This document establishes requirements for newly produced compressed hydrogen gas fuel system components, as listed below, that are intended for use on hydrogen gas powered land vehicles: a) check valves (see Clause 8); b) manual valves (see Clause 9); c) manual container valves (see Clause 10); d) automatic valves and automatic container valves (see Clause 11); e) hydrogen injectors (see Clause 12); f) pressure sensors, temperature sensors, and pressure gauges (see Clause 13); g) pressure regulators (see Clause 14); h) pressure relief valves (PRV) (see Clause 15); i) pressure relief devices (PRD) (see Clause 16, and refer to ISO 19882); j) excess flow valves (see Clause 17); k) gastight housing and leakage capture passages (see Clause 18); l) rigid fuel lines (see Clause 19); m) flexible fuel lines, hoses, and hose assemblies (see Clause 20); n) filter assemblies (see Clause 21); o) fittings (see Clause 22); p) non-metallic, low-pressure rigid fuel lines (see Clause 23); q) discharge line closures (see Clause 24). NOTE Other components not specifically identified here can be examined to meet the criteria of ISO 19887-1 and tested according to the appropriate functional needs. This document applies to components that have a nominal working pressure, as specified by the manufacturer, of 25 MPa, 35 MPa, 50 MPa, or 70 MPa at 15 °C, referred to in this document as the following pressure classes: a) “H25” – 25 MPa; b) “H35” – 35 MPa; c) “H50” – 50 MPa; and d) “H70” – 70 MPa. Other nominal working pressures for hydrogen gas besides those defined can be used if the qualification test requirements of this document are met. This document also applies to components downstream of the first stage of pressure reduction with a maximum operating pressure designated by the manufacturer in MPa or kPa. This document does not apply to the following: a) hydrogen gas fuel system components incorporated during the manufacture of motor vehicles originally manufactured in compliance with the international regulations on hydrogen and fuel cell vehicles, such as UN GTR No. 13, UN Regulation No. 134, UN Regulation No. 146, or IEC 62282-4-101; b) fuel containers; c) stationary power generation applications; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles; or g) components intended for liquid hydrogen.
Hydrogène gazeux — Composants des systèmes d'alimentation des véhicules à hydrogène — Partie 1: Titre manque
General Information
- Status
- Published
- Publication Date
- 14-Oct-2024
- Technical Committee
- ISO/TC 197 - Hydrogen technologies
- Drafting Committee
- ISO/TC 197 - Hydrogen technologies
- Current Stage
- 6060 - International Standard published
- Start Date
- 15-Oct-2024
- Due Date
- 23-Jul-2024
- Completion Date
- 15-Oct-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.
Frequently Asked Questions
ISO 19887-1:2024 is a standard published by the International Organization for Standardization (ISO). Its full title is "Gaseous Hydrogen - Fuel system components for hydrogen-fuelled vehicles - Part 1: Land vehicles". This standard covers: This document establishes requirements for newly produced compressed hydrogen gas fuel system components, as listed below, that are intended for use on hydrogen gas powered land vehicles: a) check valves (see Clause 8); b) manual valves (see Clause 9); c) manual container valves (see Clause 10); d) automatic valves and automatic container valves (see Clause 11); e) hydrogen injectors (see Clause 12); f) pressure sensors, temperature sensors, and pressure gauges (see Clause 13); g) pressure regulators (see Clause 14); h) pressure relief valves (PRV) (see Clause 15); i) pressure relief devices (PRD) (see Clause 16, and refer to ISO 19882); j) excess flow valves (see Clause 17); k) gastight housing and leakage capture passages (see Clause 18); l) rigid fuel lines (see Clause 19); m) flexible fuel lines, hoses, and hose assemblies (see Clause 20); n) filter assemblies (see Clause 21); o) fittings (see Clause 22); p) non-metallic, low-pressure rigid fuel lines (see Clause 23); q) discharge line closures (see Clause 24). NOTE Other components not specifically identified here can be examined to meet the criteria of ISO 19887-1 and tested according to the appropriate functional needs. This document applies to components that have a nominal working pressure, as specified by the manufacturer, of 25 MPa, 35 MPa, 50 MPa, or 70 MPa at 15 °C, referred to in this document as the following pressure classes: a) “H25” – 25 MPa; b) “H35” – 35 MPa; c) “H50” – 50 MPa; and d) “H70” – 70 MPa. Other nominal working pressures for hydrogen gas besides those defined can be used if the qualification test requirements of this document are met. This document also applies to components downstream of the first stage of pressure reduction with a maximum operating pressure designated by the manufacturer in MPa or kPa. This document does not apply to the following: a) hydrogen gas fuel system components incorporated during the manufacture of motor vehicles originally manufactured in compliance with the international regulations on hydrogen and fuel cell vehicles, such as UN GTR No. 13, UN Regulation No. 134, UN Regulation No. 146, or IEC 62282-4-101; b) fuel containers; c) stationary power generation applications; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles; or g) components intended for liquid hydrogen.
This document establishes requirements for newly produced compressed hydrogen gas fuel system components, as listed below, that are intended for use on hydrogen gas powered land vehicles: a) check valves (see Clause 8); b) manual valves (see Clause 9); c) manual container valves (see Clause 10); d) automatic valves and automatic container valves (see Clause 11); e) hydrogen injectors (see Clause 12); f) pressure sensors, temperature sensors, and pressure gauges (see Clause 13); g) pressure regulators (see Clause 14); h) pressure relief valves (PRV) (see Clause 15); i) pressure relief devices (PRD) (see Clause 16, and refer to ISO 19882); j) excess flow valves (see Clause 17); k) gastight housing and leakage capture passages (see Clause 18); l) rigid fuel lines (see Clause 19); m) flexible fuel lines, hoses, and hose assemblies (see Clause 20); n) filter assemblies (see Clause 21); o) fittings (see Clause 22); p) non-metallic, low-pressure rigid fuel lines (see Clause 23); q) discharge line closures (see Clause 24). NOTE Other components not specifically identified here can be examined to meet the criteria of ISO 19887-1 and tested according to the appropriate functional needs. This document applies to components that have a nominal working pressure, as specified by the manufacturer, of 25 MPa, 35 MPa, 50 MPa, or 70 MPa at 15 °C, referred to in this document as the following pressure classes: a) “H25” – 25 MPa; b) “H35” – 35 MPa; c) “H50” – 50 MPa; and d) “H70” – 70 MPa. Other nominal working pressures for hydrogen gas besides those defined can be used if the qualification test requirements of this document are met. This document also applies to components downstream of the first stage of pressure reduction with a maximum operating pressure designated by the manufacturer in MPa or kPa. This document does not apply to the following: a) hydrogen gas fuel system components incorporated during the manufacture of motor vehicles originally manufactured in compliance with the international regulations on hydrogen and fuel cell vehicles, such as UN GTR No. 13, UN Regulation No. 134, UN Regulation No. 146, or IEC 62282-4-101; b) fuel containers; c) stationary power generation applications; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles; or g) components intended for liquid hydrogen.
ISO 19887-1:2024 is classified under the following ICS (International Classification for Standards) categories: 27.075 - Hydrogen technologies; 43.060.40 - Fuel systems. The ICS classification helps identify the subject area and facilitates finding related standards.
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Standards Content (Sample)
International
Standard
ISO 19887-1
First edition
Gaseous Hydrogen — Fuel system
2024-10
components for hydrogen-fuelled
vehicles —
Part 1:
Land vehicles
Reference number
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii
Contents Page
Foreword .viii
Introduction .ix
1 Scope . 1
1.1 Inclusions.1
1.2 Applicability .2
1.3 Exclusions .2
2 Normative references . 2
3 Terms and definitions . 3
4 General requirements . 7
4.1 General construction and assembly .7
4.1.1 Intended use .7
4.1.2 Material requirements .8
4.1.3 Threaded openings.9
4.1.4 Service temperatures .10
4.1.5 Design service life .10
4.2 Failure modes and effects analysis (FMEA) .10
4.3 Electrical equipment and wiring .10
4.3.1 Openings .10
4.3.2 Equipment .10
4.3.3 Materials .10
4.3.4 Connectors .10
4.4 Component literature .11
4.4.1 General .11
4.4.2 Instructions – General .11
4.4.3 Instructions – Additional considerations .11
4.4.4 Installation instructions .11
4.5 Marking .11
4.5.1 General marking information .11
4.5.2 Marking methods . 12
4.5.3 Exclusion of markings. 12
5 General test methods .12
5.1 General test requirements . 12
5.1.1 Testing samples . 12
5.1.2 References to other standards . 12
5.1.3 Pressure and temperature requirements . 13
5.1.4 Test gases . 13
5.1.5 Material acceptance .14
5.1.6 Multi-functional components .14
5.1.7 Pre-cooling effects .14
5.1.8 Electrically operated components .14
5.2 Hydrostatic strength .14
5.2.1 General .14
5.2.2 Test method .14
5.3 Leakage . 15
5.3.1 General . 15
5.3.2 External leakage . 15
5.3.3 Internal leakage . 15
5.3.4 Test conditions . 15
5.4 Excess torque resistance .16
5.5 Bending moment .16
5.6 Continuous operation .17
5.6.1 General .17
5.6.2 Test method .17
iii
5.7 Corrosion resistance .18
5.7.1 General .18
5.7.2 Salt spray exposure .19
5.7.3 Accelerated cyclic corrosion .19
5.8 Ultraviolet resistance of external surfaces .21
5.8.1 General .21
5.8.2 Ultraviolet resistance test.21
5.8.3 Pass criteria . 22
5.9 Automotive fluid exposure . 22
5.9.1 General . 22
5.9.2 Test method . 22
5.9.3 Fluids . 22
5.9.4 Pass criteria . 22
5.10 Atmospheric exposure . . 22
5.10.1 Oxygen aging. 23
5.10.2 Ozone . 23
5.11 Abnormal electrical voltages . 23
5.11.1 Overvoltage testing . 23
5.11.2 Minimum opening voltage .24
5.12 Non-metallic material hydrogen compatibility .24
5.12.1 General .24
5.12.2 Hydrogen gas exposure .24
5.13 Vibration resistance . .24
5.13.1 Test method .24
5.13.2 Pass criteria . 25
5.14 Stress corrosion cracking resistance . 25
5.14.1 General . 25
5.14.2 Test method . 25
5.14.3 Pass criteria . 25
5.15 Insulation resistance. 25
5.16 Pre-cooled hydrogen exposure . 26
6 Quality assurance .26
7 Production inspection and acceptance testing .26
7.1 Inspection and acceptance testing plan . 26
7.2 Inspection of system critical components . 26
7.3 External leak testing . 26
8 Check valves .26
8.1 Marking . 26
8.2 Construction and assembly .27
8.3 Tests .27
8.3.1 General .27
8.3.2 Continuous operation . 28
8.3.3 Pass criteria . 28
9 Manual valves .28
9.1 Marking . 29
9.2 Construction and assembly . 29
9.2.1 General . 29
9.2.2 Handles . 29
9.2.3 Emergency manual shut-off valves . 29
9.2.4 Quarter-turn valves . 29
9.2.5 Multi-turn valves . 29
9.3 Tests . 29
9.3.1 General . 29
9.3.2 Continuous operation . 30
9.3.3 Operating torque .31
9.3.4 Valve stem torque .32
iv
10 Manual container valves .32
10.1 Marking .32
10.2 Construction and assembly .32
10.2.1 General .32
10.2.2 Handle .32
10.2.3 Quarter-turn valves . 33
10.2.4 Multi-turn valves . 33
10.2.5 Internal excess flow valve . 33
10.3 Tests . 33
10.3.1 General . 33
10.3.2 Continuous operation . 33
10.3.3 Operating torque . 34
10.3.4 Valve stem torque . 34
11 Automatic valves and automatic container valves .35
11.1 Marking . 35
11.2 Construction and assembly . 35
11.2.1 General . 35
11.2.2 De-energized position . 35
11.2.3 Shut-off valve failure position . 35
11.2.4 Internal excess flow valve . 35
11.3 Tests . 35
11.3.1 General . 35
11.3.2 Continuous operation . 36
11.3.3 Automatic valve manual override torque .37
12 Hydrogen injectors .37
12.1 Marking .37
12.2 Construction and assembly . 38
12.2.1 General . 38
12.2.2 De-energized position . 38
12.3 Tests . 38
12.3.1 General . 38
12.3.2 Continuous operation . 38
12.3.3 Insulation resistance . 39
12.3.4 Pneumatic strength . 39
12.3.5 Extreme temperature cycling . 39
13 Pressure sensors, temperature sensors, and pressure gauges .40
13.1 Marking . 40
13.2 Construction and assembly .41
13.2.1 General .41
13.2.2 Pressure gauge lens .41
13.3 Tests .41
13.3.1 General .41
13.3.2 Continuous operation .41
13.3.3 Abnormal electrical voltages.42
13.3.4 Insulation resistance .43
14 Pressure regulators . .43
14.1 Marking .43
14.2 Construction and assembly .43
14.2.1 General .43
14.2.2 Nominal outlet pressure .43
14.2.3 Pressure regulator PRV .43
14.3 Tests .43
14.3.1 General .43
14.3.2 Hydrostatic strength . 44
14.3.3 Leakage .45
14.3.4 Continuous operation .45
14.3.5 Pressure impulse .45
v
14.3.6 Pressure chamber – PRV operation . 46
15 Pressure relief valves .46
15.1 Marking . 46
15.2 Construction and assembly . 46
15.2.1 General . 46
15.2.2 Venting . . 46
15.2.3 Inspection and acceptance testing . 46
15.3 Tests . 46
15.3.1 General . 46
15.3.2 Hydrostatic strength .47
15.3.3 Leakage .47
15.3.4 Continuous operation .47
15.3.5 Opening and reseating characteristics. 48
16 Pressure relief devices .48
17 Excess flow valves . .48
17.1 Marking . 48
17.2 Construction and assembly . 49
17.3 Tests . 49
17.3.1 General . 49
17.3.2 Continuous operation . 49
17.3.3 Bypass flow . 49
18 Gastight housing and leakage capture passages .50
18.1 Marking . 50
18.2 Construction and assembly . 50
18.2.1 General . 50
18.2.2 Inspection and acceptance testing . 50
18.3 Tests . 50
18.3.1 General . 50
18.3.2 Leakage .51
18.3.3 Venting ability and pressure retention .51
18.3.4 Pull-off .52
19 Rigid fuel lines .52
19.1 Marking .52
19.2 Construction and assembly .52
19.3 Tests .52
19.3.1 General .52
19.3.2 Continuous operation . 53
19.3.3 Bending . 53
20 Flexible fuel lines, hoses, and hose assemblies .53
20.1 Markings . 54
20.1.1 General . 54
20.1.2 Bulk hoses. 54
20.1.3 Hose assemblies . 54
20.1.4 Marking surfaces . . 55
20.1.5 Date code . 55
20.2 Construction, assembly, and installation instructions . 55
20.2.1 General . 55
20.2.2 Linings . 55
20.2.3 Hose cover .
...
ISO 19887-1:2024 presents a comprehensive framework for the essential components of gaseous hydrogen fuel systems in land vehicles, ensuring a standardized approach for manufacturers in this emerging industry. The scope of the document highlights a range of critical components such as check valves, manual and automatic valves, injectors, pressure sensors, regulators, and various fittings, all tailored for hydrogen-fuelled vehicles. This thorough categorization supports the consistent application of safety and performance standards across multiple pressure classes (H25, H35, H50, H70), catering to various operational needs. One of the standard's significant strengths is its focus on safety and performance, creating a benchmark for component integrity at nominal working pressures up to 70 MPa, suitable for the burgeoning market of hydrogen vehicles. By setting precise requirements for the individual components, ISO 19887-1:2024 mitigates risks associated with high-pressure hydrogen systems, thereby enhancing user safety and promoting confidence in hydrogen as a viable alternative fuel. Moreover, the document's flexibility in allowing examination of additional components not explicitly listed reinforces its relevance to manufacturers. This provision ensures that evolving technologies and innovations can be integrated without compromising safety or functionality. ISO 19887-1:2024 is particularly timely, as the automotive industry increasingly pivots towards sustainable energy solutions. By laying out a clear framework for hydrogen fuel system components, the standard supports the broader adoption of hydrogen vehicles, aligning with global initiatives aimed at reducing carbon emissions. Overall, the relevance of ISO 19887-1:2024 extends beyond compliance; it serves as an essential reference that fosters innovation, safety, and industry growth, crucial for the future of hydrogen-powered transportation.
ISO 19887-1:2024は、商用の水素燃料システムコンポーネントに関する重要な標準であり、特に水素ガスを燃料とする陸上車両向けに設計されています。この標準は、特定のコンポーネントに必要な要件を定義しており、その範囲は非常に広範です。具体的には、チェックバルブ、手動バルブ、自動バルブ、圧力センサー、温度センサー、圧力計、そしてフィルターアセンブリなど、多種多様なコンポーネントが含まれています。 この標準の強みは、明確な適用範囲を持ち、圧力クラス（H25、H35、H50、H70）によって水素ガスの動作条件を詳細に定めている点です。これにより、メーカーは各コンポーネントの性能を保証できる基準を得ることができ、特に圧力規制や安全性の観点から重要な役割を果たします。また、ISO 19887-1は、ハイドロジェン燃料を使用した技術の進展に対しても適応性が高く、その他の水素ガスに関する規格や適用範囲の基準と整合性を保っています。 さらに、この標準は水素燃料機器の安全性を確保するために、部品の機能性の要件を明示しています。具体的には、さまざまな作業圧力条件の下での信頼性を高めるための試験プロセスを規定しており、メーカーや関連業者に対する指針を提供しています。 この文書は、実際の運用における水素燃料システムの信頼性を向上させるだけでなく、未来の水素経済を支える技術革新にも寄与するものとなっており、その関連性は高いと言えるでしょう。ISO 19887-1:2024は、環境に優しい輸送手段の推進に必要不可欠なツールとして位置づけられ、持続可能な未来に向けた重要なステップとなります。
ISO 19887-1:2024 표준은 수소 연료 차량에 사용되는 압축 수소 가스 연료 시스템 구성 요소에 대한 명확한 요구 사항을 설정하는 중요한 문서입니다. 이 표준은 차량의 안전성과 효율성을 보장하기 위해 다양한 구성 요소를 포함하고 있으며, 각 구성 요소는 명시된 압력 클래스에 따라 테스트 및 인증될 수 있습니다. 상세하게 살펴보면, ISO 19887-1은 체크 밸브, 수동 밸브, 자동 밸브, 수소 인젝터와 같은 구성 요소뿐만 아니라 압력 센서, 온도 센서 및 압력 게이지 등의 과학적 장비까지 폭넓게 다루고 있습니다. 이러한 구성 요소들은 각각의 사용 목적에 맞춰 안전한 작동을 보장하며, 이를 통해 수소 연료 차량의 성능 향상에 기여할 수 있습니다. 이 표준의 주요 강점 중 하나는 다양한 압력 등급에 대한 적용 가능성을 제공하는 점입니다. H25, H35, H50, H70와 같은 명목상 작업 압력 클래스에 따라 설계된 구성 요소들은 제조업체가 설정한 압력 요건을 충족함으로써 상호 운용성 및 호환성을 높입니다. 또한, ISO 19887-1은 기능적 요구 사항에 맞추어 시험을 통해 추가 구성 요소를 포함할 수 있는 유연성도 가지고 있습니다. ISO 19887-1:2024는 수소 연료 시스템의 국제적 표준을 제정하여 수소 연료 차량이 시장에서 신뢰할 수 있는 옵션으로 자리잡는 데 중요한 역할을 합니다. 이 문서는 수소 에너지의 가능성을 극대화하고, 친환경적인 이동 수단을 촉진하는 데 기여하는 필수적인 기준으로 평가될 수 있습니다. 따라서, 이 표준은 수소 연료 기술의 발전에 있어 매우 중요한 relevance를 지니며, 산업 전반에 긍정적인 영향을 미칠 것으로 기대됩니다.
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