ISO 12619-10-2017 PDF

Full title and description

Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 10: Pressure relief device (PRD). This International Standard specifies tests and performance requirements for pressure relief devices used in CGH2 and hydrogen/natural-gas-blend vehicle fuel systems.

Abstract

ISO 12619-10:2017 defines functional tests and minimum requirements for the pressure relief device (PRD) as a component of fuel systems for motor vehicles using compressed gaseous hydrogen (CGH2) or hydrogen/natural gas blends. The standard states its applicability (vehicles defined in ISO 3833), references gas-fuel quality standards (ISO 14687-1 / ISO 14687-2 for hydrogen; ISO 15403-1 and ISO/TR 15403-2 for natural gas), and lists specific exclusions (for example: liquefied hydrogen systems, fuel containers, stationary gas engines, fuel-cell vehicles and certain hardware). All pressure references are gauge pressure unless otherwise stated.

General information

• Status: Published.
• Publication date: August 2017 (2017-08).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.060.40 (Fuel systems).
• Edition / version: Edition 1 (2017).
• Number of pages: 12 pages.

Scope

ISO 12619-10:2017 applies to the pressure relief device (PRD) used in on‑board fuel systems employing compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends for motor vehicles (vehicle types per ISO 3833). The document specifies required tests and acceptance criteria for PRD function and performance and clarifies items and systems to which it does not apply (for example liquefied hydrogen systems, primary fuel containers, refuelling receptacles, fuel-cell vehicle systems and certain mounting hardware). It is intended to ensure component-level safety and interoperability within the broader ISO 12619 series of documents.

Key topics and requirements

• Definition and function of the pressure relief device (PRD) in CGH2 and hydrogen/natural-gas-blend fuel systems.
• Test methods for PRD activation, leakage, re-seating (where applicable) and functional performance under specified pressure and temperature conditions.
• Acceptance criteria and pass/fail requirements for safety and reliability of the PRD.
• Requirements for test gas and fuel-quality references (links to ISO 14687 and ISO 15403 series for applicable fuel specifications).
• Explicit exclusions and notes (e.g., LH2 systems, fuel containers, stationary engines, fuel-cell vehicles).

Typical use and users

Primary users are automotive OEMs, component and PRD manufacturers, hydrogen-fuel-system suppliers, test and certification laboratories, and safety/regulatory authorities involved in vehicle type approval and component homologation for hydrogen and hydrogen-blend fuel systems. The standard is used during component design, type testing, supplier qualification and product acceptance.

Related standards

ISO 12619-10 is one part of the ISO 12619 series addressing CGH2 and hydrogen/natural-gas-blend vehicle fuel system components (other parts cover items such as gas injectors, pressure indicators, pressure relief valves, excess flow valves and more). Key cross-references include ISO 3833 (vehicle type definitions), ISO 14687 (hydrogen fuel quality) and ISO 15403 (natural gas fuel quality); national adoptions and translations exist (for example British, Indian, Estonian and other national standards bodies publish equivalent national documents).

Keywords

PRD; pressure relief device; CGH2; hydrogen fuel; hydrogen/natural-gas blends; vehicle fuel systems; component testing; ISO 12619; fuel system safety; ISO 3833; ISO 14687; ISO 15403.

FAQ

Q: What is this standard?

A: ISO 12619-10:2017 is an International Standard specifying tests and performance requirements for pressure relief devices used in compressed gaseous hydrogen (CGH2) and hydrogen/natural-gas-blend vehicle fuel systems.

Q: What does it cover?

A: It covers PRD functional definitions, required tests (activation, leakage, performance under pressure/temperature), acceptance criteria and applicable fuel-quality references. It also lists explicit exclusions (e.g., liquefied hydrogen systems, fuel containers, refuelling receptacles, fuel-cell vehicles).

Q: Who typically uses it?

A: Component manufacturers, vehicle OEMs, test laboratories, certification bodies and regulators use the standard to design, test and approve PRDs for vehicles using CGH2 or hydrogen/natural-gas blends.

Q: Is it current or superseded?

A: The document was published in August 2017 and is listed as a published International Standard; users should verify current status with ISO or their national standards body before relying on it for compliance because national adoptions/amendments or later revisions may have occurred since 2017. (This product page cites the ISO bibliographic record as of the document publication and common national catalogues.)

Q: Is it part of a series?

A: Yes — ISO 12619 comprises multiple parts addressing different fuel-system components for CGH2 and hydrogen/natural-gas blends (e.g., injectors, pressure indicators, PRVs, excess flow valves), and those parts are intended to be used together where relevant.

Q: What are the key keywords?

A: Pressure relief device (PRD), CGH2, hydrogen blends, vehicle fuel system components, component testing, ISO 12619, fuel quality (ISO 14687 / ISO 15403).