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BS ISO 19723-1:2018+A1:2021

BS ISO 19723-1:2018+A1:2021

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Road vehicles. Liquefied natural gas (LNG) fuel systems – Safety requirements

Published By Publication Date Number of Pages
BSI 2021 24
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This document specifies the minimum safety requirements applicable to liquefied natural gas (LNG) on-board fuel system intended for use on the types of motor vehicles defined in ISO 3833.

This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using liquefied natural gas in accordance with the ISO 15403 series. It is not applicable to original-production and converted vehicles.

All matters relating to the skills of installers and converters have been excluded from this document.

This document is only applicable on the components in the “LNG system” meaning an assembly of components (tanks, valves, flexible fuel lines, etc., see Annex B) and connecting parts (fuel lines, fittings, etc.) fitted on motor vehicles using LNG in their propulsion system and related components up to and including the vaporizer. Other parts downstream from the vaporizer are considered as CNG components covered by ISO 15501.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Requirements
4.1 Design
4.1.1 General
14 4.1.2 Components
16 4.2 Refuelling
4.2.1 General
4.2.2 Receptacle location
4.2.3 Receptacle mounting
17 4.2.4 Minimum receptacle clearance
4.3 Leakage control
18 4.4 Mounting of the tank(s)
4.5 Heat protection
4.6 Minimizing risk of gas ignition
19 4.7 Venting system
4.7.2 Ventilation lines for PRVs.
5 Instruction for use
20 6 Marking
21 Annex A (informative) Technical solutions to functional requirements
22 Annex B (informative) Liquefied natural gas (LNG on board fuel systems)
23 Bibliography

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BS ISO 19723-1:2018+A1:2021
$142.49