ISO 20766-21:2023

Road vehicles — Liquefied petroleum gas (LPG) fuel system components — Part 21: Pressure and/or temperature sensors

This document specifies general requirements for the pressure and/or temperature sensors liquefied petroleum gas fuel, intended for use on the types of motor vehicles as defined in ISO 3833. It also provides general design principles and specifies requirements for instructions and marking. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using gaseous fuels in accordance with ISO 9162. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container mounting hardware; d) electronic fuel management; e) refuelling receptacles. It is recognized that miscellaneous components not specifically addressed herein can be examined for compliance with the criteria of any applicable part of the ISO 20766 series, including testing to the appropriate functional tests. All references to pressure in this document are considered gauge pressures unless otherwise specified. This document applies to device which have a service pressure in the range of 110 kPa (butane rich at 20 °C) and 840 kPa (propane rich at 20 °C), hereinafter referred to in this document. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).

Véhicules routiers — Équipements pour véhicules utilisant le gaz de pétrole liquéfié (GPL) comme combustible — Partie 21: Capteurs de pression et/ou de température

General Information

• Status: Published
• Publication Date: 05-Feb-2023
• 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 6 - Fuel system components and refuelling connector for vehicles propelled by Liquefied Petroleum Gas (LPG)
• Current Stage: 6060 - International Standard published
• Start Date: 06-Feb-2023
• Due Date: 04-Oct-2022
• Completion Date: 06-Feb-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20766-21
First edition
2023-02
Road vehicles — Liquefied petroleum
gas (LPG) fuel system components —
Part 21:
Pressure and/or temperature sensors
Véhicules routiers — Équipements pour véhicules utilisant le gaz de
pétrole liquéfié (GPL) comme combustible —
Partie 21: Capteurs de pression et/ou de température
Reference number
ISO 20766-21:2023(E)
© ISO 2023

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ISO 20766-21:2023(E)
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© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
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ISO 20766-21:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Markings . 2
5 Construction and assembly .2
6 Tests . 2
6.1 Applicability . 2
6.2 Hydrostatic strength . 3
6.3 High temperature . . 3
6.4 Low temperature . 3
Bibliography . 4
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ISO 20766-21:2023(E)
Foreword
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 41,
Specific aspects for gaseous fuels.
A list of all parts in the ISO 20766 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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INTERNATIONAL STANDARD ISO 20766-21:2023(E)
Road vehic
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