ISO 12619-14-2017 PDF

Full title and description

St ISO 12619-14-2017 — Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 14: Flexible fuel line. This part specifies tests and performance requirements for flexible fuel lines used in CGH2 and hydrogen/natural gas blend vehicle fuel systems (intended for the vehicle types defined in ISO 3833).

Abstract

ISO 12619-14:2017 defines test methods and minimum requirements for flexible fuel lines intended for use with compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends. It states its applicability to vehicles using CGH2 in accordance with ISO 14687 and to hydrogen/natural gas blends where natural gas meets ISO 15403, and it explicitly excludes components such as liquefied hydrogen (LH2) system components, fuel containers, stationary gas engines, refuelling receptacles and fuel cell vehicles. All pressure references are gauge pressure unless otherwise specified.

General information

• Status: Published / Confirmed.
• Publication date: 2017-08 (Edition 1, published 2017).
• Publisher: International Organization for Standardization (ISO); available through national bodies (e.g., BSI as BS ISO 12619-14:2017).
• ICS / categories: 43.060.40 (Fuel systems).
• Edition / version: Edition 1 (2017).
• Number of pages: Vendor/registry records vary (ISO record lists a short technical publication; national listings commonly show 16 pages for the BSI version). Users should consult the purchaser copy for exact pagination.

Scope

This standard covers performance tests and acceptance criteria for flexible fuel line assemblies intended for use with compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends in on‑road motor vehicles as defined by ISO 3833. It applies where the hydrogen and natural gas grades conform to the respective fuel quality standards referenced (ISO 14687 series for hydrogen, ISO 15403 series for natural gas). It does not apply to LH2 components, fuel containers, stationary engines, mounting hardware, electronic fuel management, refuelling receptacles or fuel cell vehicle specific systems.

Key topics and requirements

• Definition and identification of flexible fuel line assemblies intended for CGH2 and H2/NG blends.
• Test methods for pressure, leak tightness, burst resistance and durability under expected service conditions (including pressure cycling and environmental exposure).
• Performance acceptance criteria (pass/fail limits) for mechanical integrity and sealing under specified test regimes.
• Material and compatibility considerations relevant to hydrogen embrittlement, permeation and chemical compatibility with hydrogen and blended fuels.
• Reference to related fuel quality standards (ISO 14687, ISO 15403) and vehicle definitions (ISO 3833) to ensure correct application context.

Typical use and users

Primary users include automotive fuel-system designers and engineers, component manufacturers (hose and fitting producers), vehicle OEM safety and homologation teams, testing laboratories performing component qualification, and regulatory or certification bodies reviewing vehicle fuel‑system compliance for CGH2 and H2/NG blends. The standard is used during component design, type‑approval testing, supplier qualification and in-service inspections where applicable.

Related standards

ISO 12619-14 is one part of the ISO 12619 series addressing CGH2 and hydrogen/natural gas blend fuel system components. It references and is used alongside ISO 3833 (vehicle categories and definitions), ISO 14687 (hydrogen fuel quality), ISO 15403 (natural gas fuel quality) and other parts of ISO 12619 that cover additional components and requirements. National adopters may publish identical/adopted versions (for example, BS ISO 12619-14:2017).

Keywords

compressed gaseous hydrogen, CGH2, hydrogen/natural gas blends, flexible fuel line, fuel system components, automotive, fuel line testing, hydrogen compatibility, ISO 12619 series.

FAQ

Q: What is this standard?

A: ISO 12619-14:2017 is an international standard specifying tests and performance requirements for flexible fuel lines used with compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends in road vehicles.

Q: What does it cover?

A: It covers test methods (pressure, leakage, burst, durability, environmental exposure), acceptance criteria for integrity and sealing, and applicability limits (it excludes LH2 components, fuel containers, stationary engines, refuelling receptacles and fuel cell vehicle systems).

Q: Who typically uses it?

A: Automotive OEMs, component and hose manufacturers, test laboratories, certification bodies and engineers responsible for fuel‑system design and qualification for hydrogen and hydrogen/NG blend vehicles.

Q: Is it current or superseded?

A: The published edition is from 2017 (Edition 1). ISO records indicate it was published in 2017 and has been maintained in the ISO lifecycle (confirmed status on ISO registry); users should check the ISO catalogue or their national standards body for any newer revisions or confirmations prior to relying on it for compliance activities.

Q: Is it part of a series?

A: Yes — it is part of the ISO 12619 series covering various fuel system components for CGH2 and hydrogen/natural gas blends; other parts address different components and test requirements.

Q: What are the key keywords?

A: Compressed gaseous hydrogen, CGH2, hydrogen/natural gas blend, flexible fuel line, fuel system components, fuel quality (ISO 14687, ISO 15403), vehicle definitions (ISO 3833).