ISO 12619-5-2016 PDF

Full title and description

ISO 12619-5:2016 — Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 5: Manual cylinder valve. This part of ISO 12619 specifies requirements, definitions and general design principles for manual cylinder valves used in CGH2 and hydrogen/natural gas blend vehicle fuel systems, and sets out marking and instruction requirements for those components.

Abstract

ISO 12619-5:2016 defines general requirements and terms for manual cylinder valves intended for use with compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends in road vehicles (vehicle types as defined in ISO 3833). It provides high-level design principles and specifies required markings and information to be supplied with the component. The part is applicable to vehicles using CGH2 in accordance with ISO 14687-1 / ISO 14687-2 and hydrogen/natural gas blends in accordance with ISO 15403-1 / ISO/TR 15403-2. It excludes liquefied hydrogen fuel-system components upstream of the vaporizer, fuel containers, stationary gas engines, container mounting hardware, electronic fuel management and refuelling receptacles.

General information

• Status: Published (confirmed on systematic review).
• Publication date: 11 August 2016 (ISO publication).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.060.40 — Fuel systems.
• Edition / version: Edition 1 — 2016 (ISO 12619-5:2016).
• Number of pages: 5 (ISO catalogue listing).

Scope

This part of ISO 12619 specifies general requirements, definitions and design principles for manual cylinder valves forming part of CGH2 and hydrogen/natural gas blend fuel system components for road vehicles. It applies where vehicle fuel is compressed gaseous hydrogen or hydrogen/natural gas blends (per the referenced fuel-quality standards). The standard explicitly does not apply to liquefied hydrogen fuel components upstream of and including the vaporizer, to fuel containers themselves, to stationary gas engines, to container mounting hardware, to electronic fuel management systems, or to refuelling receptacles.

Key topics and requirements

• Definitions and general requirements for CGH2 and hydrogen/natural gas blend fuel system components.
• Design principles specific to manual cylinder valves used in vehicle fuel systems (pressure, materials and compatibility considerations).
• Marking and labelling requirements for identification and safety information on the valve.
• Instructions and information to be supplied with the component (installation, operation, maintenance warnings).
• Construction and assembly considerations specific to vehicle service conditions.
• Reference to applicable fuel-quality and vehicle-type standards (integration with ISO 14687, ISO 15403, ISO 3833).
• Normative references and cross-referenced test/performance requirements from other parts of the ISO 12619 series.

Typical use and users

Primary users are automotive OEMs, cylinder and valve manufacturers, component suppliers for hydrogen and hydrogen/blend fuel systems, test and certification laboratories, and regulatory bodies working on vehicle fuel-system safety and compatibility. The standard is used during design, procurement, conformity assessment and technical review of manual cylinder valves for gaseous hydrogen and hydrogen/natural-gas-blend applications in road vehicles.

Related standards

Main related documents include other parts of the ISO 12619 series (for example ISO 12619-1, ISO 12619-2, ISO 12619-3, ISO 12619-4), the vehicle type definition standard ISO 3833, hydrogen fuel-quality standards ISO 14687-1 / ISO 14687-2 and the natural gas fuel references ISO 15403-1 / ISO/TR 15403-2. Related standards on specific components, tests and safety requirements for hydrogen vehicle systems should be consulted alongside ISO 12619-5.

Keywords

ISO 12619-5, compressed gaseous hydrogen, CGH2, hydrogen/natural gas blends, manual cylinder valve, vehicle fuel systems, fuel-system components, markings, instructions, ISO 3833, ISO 14687, ISO 15403.

FAQ

Q: What is this standard?

A: ISO 12619-5:2016 is the International Standard that sets out requirements and definitions for manual cylinder valves used in compressed gaseous hydrogen and hydrogen/natural-gas-blend fuel systems for road vehicles.

Q: What does it cover?

A: It covers definitions, general requirements and high-level design principles for manual cylinder valves, plus required markings and information to be provided with the component. It defines applicability to CGH2 and hydrogen/natural-gas-blend vehicle fuel systems and lists specific exclusions (e.g., liquefied hydrogen components upstream of the vaporizer, fuel containers, refuelling receptacles).

Q: Who typically uses it?

A: Automotive OEMs, valve and cylinder manufacturers, component suppliers, testing and certification bodies, and regulators concerned with hydrogen vehicle fuel-system safety and component conformity.

Q: Is it current or superseded?

A: ISO 12619-5 was published on 11 August 2016 (Edition 1) and the ISO record shows the publication was reviewed and confirmed in 2023. As of its last systematic review it remains the current edition; ISO standards are subject to periodic review (typically every five years).

Q: Is it part of a series?

A: Yes. ISO 12619-5 is part of the ISO 12619 series dealing with CGH2 and hydrogen/natural-gas-blend fuel system components (other parts address general requirements, performance and test methods, regulators, check valves, etc.).

Q: What are the key keywords?

A: Compressed gaseous hydrogen (CGH2), hydrogen/natural gas blends, manual cylinder valve, vehicle fuel systems, ISO 12619-5, fuel-system components, markings, instructions.