ISO 12619-3-2014 amd1-2016 PDF

Full title and description

ISO 12619-3:2014/Amd 1:2016 — Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 3: Pressure regulator — Amendment 1. This amendment (published April 2016) modifies or adds to the requirements and/or test provisions of the original ISO 12619-3:2014 pressure regulator specification for CGH2 and hydrogen/natural-gas-blend fuel system components intended for road vehicles.

Abstract

ISO 12619-3:2014 specifies tests and requirements for the pressure regulator used in compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel systems for motor vehicles (types defined in ISO 3833). The amendment ISO 12619-3:2014/Amd 1:2016 provides a one-page change to the published 2014 edition to clarify, correct or add limited content to the original part. The base standard excludes liquefied hydrogen (LH2) components, fuel containers, stationary gas engines, container mounting hardware, electronic fuel management and refuelling receptacles.

General information

• Status: Published (base standard and amendment published).
• Publication date: Base: June 2014 (ISO 12619-3:2014); Amendment 1: April 2016 (ISO 12619-3:2014/Amd 1:2016).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.060.40 (Fuel systems for road vehicles).
• Edition / version: Edition 1 (2014) with Amendment 1 (2016).
• Number of pages: Base document: 6 pages; Amendment 1: 1 page.

(General bibliographic details derived from ISO catalogue entries for the base standard and the amendment.)

Scope

Applies to pressure regulators as fuel system components for road vehicles that operate on compressed gaseous hydrogen (CGH2) in accordance with ISO 14687 (H2 fuel quality) and hydrogen/natural gas blends where natural gas meets ISO 15403 specifications. The standard defines required tests and acceptance criteria for regulator performance, durability and compatibility with the specified gaseous fuels. It is not intended for liquefied hydrogen (LH2) components, fuel containers, stationary engines, mounting hardware, electronic fuel-management systems or refuelling receptacles.

Key topics and requirements

• Definition of the pressure regulator as a vehicle fuel-system component and its intended operating environment (vehicle types as per ISO 3833).
• Performance tests and acceptance criteria for regulator operation at specified pressures and flow rates (including durability and leakage requirements).
• Material and compatibility considerations for CGH2 and hydrogen/natural gas blends (to address embrittlement, permeation and chemical compatibility).
• Environmental and mechanical robustness tests (temperature cycling, vibration, and mechanical endurance relevant to vehicle use).
• Documentation, marking and instructions for safe installation and use on vehicles.

These items summarize the primary technical obligations in the part and its amendment. Specific test procedures and numeric acceptance criteria are given in the referenced clauses of the published standard.

Typical use and users

Primary users are automotive OEMs, fuel-system component manufacturers (pressure-regulator designers and suppliers), independent test laboratories, certification and type-approval bodies, and regulatory authorities involved in vehicle fuel-system safety and homologation. Secondary users include engineering consultants, research organizations and standards adoption bodies. The amendment is used by these stakeholders to ensure designs comply with the updated/clarified requirements.

Related standards

ISO 12619 is a multipart series covering CGH2 and hydrogen/natural gas blend fuel‑system components; related parts include ISO 12619-1 (general requirements and definitions), ISO 12619-2 (performance and general test methods) and further parts addressing valves, pressure-relief devices and other components (e.g., parts published in 2016–2017 such as PRV/PRD and flexible fuel lines). Other relevant standards referenced by the series include ISO 14687 (hydrogen fuel quality), ISO 15403 (natural gas for vehicle fuel) and vehicle definitions in ISO 3833.

Keywords

CGH2, hydrogen/natural gas blends, pressure regulator, fuel system component, road vehicles, ISO 12619, test methods, durability, leakage, material compatibility, ISO 14687, ISO 15403.

FAQ

Q: What is this standard?

A: ISO 12619-3:2014 is the part of the ISO 12619 series that specifies tests and requirements for pressure regulators used in compressed gaseous hydrogen and hydrogen/natural gas-blend vehicle fuel systems; ISO 12619-3:2014/Amd 1:2016 is a published amendment to that part.

Q: What does it cover?

A: It covers the functional and performance tests, acceptance criteria, and compatibility considerations required for pressure regulators intended for vehicle use with CGH2 and hydrogen/natural gas blends, and it excludes LH2 components, fuel containers, stationary engines and certain other items.

Q: Who typically uses it?

A: Automotive OEMs, component manufacturers, testing laboratories, certification/type-approval bodies and regulators responsible for fuel-system safety and homologation.

Q: Is it current or superseded?

A: As of the amendment publication, the base edition is 2014 and Amendment 1 was published in April 2016. Users should check the ISO catalogue or their national standards body for any further revisions or later confirmations/supersessions beyond 2016.

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 (Parts 1, 2, 3, and additional parts for valves, relief devices, flexible lines, filters, etc.).

Q: What are the key keywords?

A: CGH2, hydrogen blends, pressure regulator, fuel system component, vehicle fuel systems, test methods, material compatibility, ISO 12619.