ISO 15500-20:2015

Road vehicles — Compressed natural gas (CNG) fuel system components — Part 20: Rigid fuel line in material other than stainless steel

ISO 15500-20:2015 provides specific requirements and tests applicable to the rigid fuel line in carbon steel, intended for use on the types of motor vehicles, as defined in ISO 3833, with a service pressure for natural gas as a fuel of 20 MPa (200 bar) settled at 15 °C. ISO 15500 is intended to be applied to vehicles using natural gas which comply with requirements established in ISO 15403‑1 (mono-fuel, bi-fuel, or dual-fuel applications). This part of ISO 15500 does not apply to the following: a) liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer; b) fuel containers; c) stationary gas engines; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles. NOTE All references to pressure in this part of ISO 15500 are considered gauge pressures unless otherwise specified.[1] [1] 1 bar = 100 kPa = 0,1 MPa.

Véhicules routiers — Composants des systèmes de remplissage en gaz naturel comprimé — Partie 20: Circuit de combustible rigide en matériaux autres que l'acier inoxydable

General Information

• Status: Published
• Publication Date: 29-Nov-2015
• ICS: 43.060.40 - Fuel systems
• Technical Committee: ISO/TC 22/SC 41 - Specific aspects for gaseous fuels
• Drafting Committee: ISO/TC 22/SC 41/WG 3 - Fuel system components and refuelling connector for vehicles propelled by gaseous fuel
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 14-Feb-2023

Relations

• Revises: ISO 15500-20:2007 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 20: Rigid fuel line in material other than stainless steel
• Effective Date: 13-Aug-2011

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15500-20
Second edition
2015-12-01
Road vehicles — Compressed natural
gas (CNG) fuel system components —
Part 20:
Rigid fuel line in material other than
stainless steel
Véhicules routiers — Composants des systèmes de remplissage en gaz
naturel comprimé —
Partie 20: Circuit de combustible rigide en matériaux autres que
l’acier inoxydable
Reference number
ISO 15500-20:2015(E)
©
ISO 2015

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ISO 15500-20:2015(E)

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ii © ISO 2015 – All rights reserved

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ISO 15500-20:2015(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking and labelling . 2
5 Qualifications for construction and assembly . 2
6 Tests . 2
6.1 Applicability . 2
6.2 Hydrostatic strength . 3
6.3 Continued operation . 3
6.4 Corrosion resistance . 3
6.5 Bending . 3
Bibliography . 4
© ISO 2015 – All rights reserved iii

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ISO 15500-20:2015(E)

Foreword
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The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 41, Specific
aspects for gaseous fuels.
This second edition cancels and replaces the first edition (ISO 15500-20:2007), which has been
technically revised.
ISO 15500 consists of the following parts, under the general title Road vehicles — Compressed natural
gas (CNG) fuel system components:
— Part 1: General requirements and definitions
— Part 2: Performance and general test methods
— Part 3: Check valve
— Part 4: Manual valve
— Part 5: Manual cylinder valve
— Part 6: Automatic valve
— Part 7: Gas injector
— Part 8: Pressure indicator
— Part 9: Pressure regulator
— Part 10: Gas-flow adjuster
— Part 11: Gas/air mixer
— Part 12: Pressure relief valve (PRV)
— Part 13: Pressure relief device (PRD)
iv © IS
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