ISO 12619-6-2017 PDF

Full title and description

Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 6: Automatic valve. This International Standard specifies tests and requirements for the automatic valve used as a component in CGH2 and hydrogen/natural-gas-blend vehicle fuel systems intended for the types of motor vehicles defined in ISO 3833.

Abstract

ISO 12619-6:2017 defines functional tests and performance requirements for automatic valves in compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel systems for road vehicles. It establishes applicability (vehicles using CGH2 per ISO 14687 and hydrogen/natural gas blends per ISO 15403 series), lists excluded components (for example liquefied-hydrogen equipment, fuel containers, stationary gas engines, mounting hardware, electronic fuel management and refuelling receptacles) and gives testing/acceptance criteria to verify safe, durable operation under expected vehicle conditions.

General information

• Status: Published (confirmed as current by ISO review in 2023).
• Publication date: 3 March 2017 (Edition 1, 2017 release).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.060.40 (Fuel systems for road vehicles).
• Edition / version: Edition 1 (2017).
• Number of pages: 6 pages (official ISO bibliographic entry); note that some national-adoption documents may show different pagination depending on formatting.

Scope

Specifies requirements and test methods for the automatic valve as a fuel-system component in vehicles using compressed gaseous hydrogen (CGH2) and hydrogen/natural-gas blends. Applicable to on-road vehicles as defined in ISO 3833 and to fuels meeting ISO 14687 (CGH2) or ISO 15403 (natural gas / blends) specifications. Not applicable to liquefied hydrogen (LH2) components, fuel containers, stationary gas engines, container mounting hardware, electronic fuel management systems, or refuelling receptacles. The document focuses on functional performance, safety-related behaviour and durability of the automatic valve under vehicle-relevant conditions.

Key topics and requirements

• Functional test procedures for automatic valve operation (open/close function, actuation under specified pressures and temperatures).
• Performance and acceptance criteria for leak tightness and sealing integrity under rated gauge pressures and temperature cycles.
• Durability and endurance testing to verify operational life and resistance to hydrogen-induced effects.
• Materials and compatibility considerations for hydrogen and hydrogen/natural-gas blends to mitigate embrittlement and permeation risks.
• Safety and fail-safe behaviour (requirements for safe closure or fail-safe position on fault conditions).
• Reference to normative documents and classification requirements (for example IEC 60079-10-1 for explosive-atmosphere area classification where applicable).

Typical use and users

Manufacturers and designers of vehicle fuel system components (valves) for compressed gaseous hydrogen and hydrogen/natural-gas blends; vehicle OEMs integrating hydrogen fuel systems; testing laboratories performing type and conformity tests; certification bodies and regulatory authorities assessing component compliance; and suppliers responsible for materials selection and safety validation. The standard is used during component design, validation testing and procurement/specification activities.

Related standards

Closely related documents include ISO 12619-1 (general requirements and definitions) and ISO 12619-2 (performance and general test methods) within the same series, ISO 14687 (hydrogen fuel quality), ISO 15403 (natural gas for use as compressed fuel) and IEC 60079-10-1 (explosive-atmosphere classification) among referenced normative standards. ISO/TC 22/SC 41 is the technical committee responsible for this work.

Keywords

ISO 12619-6, compressed gaseous hydrogen, CGH2, hydrogen/natural gas blends, automatic valve, fuel system component, road vehicles, valve testing, leak tightness, materials compatibility, durability, ISO 3833.

FAQ

Q: What is this standard?

A: ISO 12619-6:2017 is an International Standard that specifies tests and requirements for automatic valves used in compressed gaseous hydrogen (CGH2) and hydrogen/natural-gas-blend vehicle fuel systems.

Q: What does it cover?

A: It covers functional testing, performance criteria, and acceptance requirements for automatic valves (operation, leak tightness, durability and materials considerations) intended for use on road vehicles using CGH2 or hydrogen/natural-gas blends. It also lists exclusions such as LH2 systems, fuel containers and refuelling receptacles.

Q: Who typically uses it?

A: Component manufacturers, vehicle OEMs, test laboratories, certification bodies and regulatory authorities involved in hydrogen vehicle fuel-system design, testing and compliance use this standard. It is also used by suppliers for material and compatibility assessment.

Q: Is it current or superseded?

A: The 2017 edition (Edition 1) is published and — according to ISO review records — was confirmed as current in the 2023 review cycle. Users should verify national adoption or amendments in their jurisdiction before assuming local equivalence.

Q: Is it part of a series?

A: Yes — ISO 12619 is a multipart series addressing CGH2 and hydrogen/natural-gas blend fuel system components; Part 6 addresses automatic valves while other parts cover general requirements (Part 1) and performance/test methods (Part 2), etc.

Q: What are the key keywords?

A: Compressed gaseous hydrogen (CGH2), hydrogen/natural-gas blends, automatic valve, fuel system component, valve testing, leak tightness, materials compatibility, durability, road vehicles, ISO 12619-6.