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ISO 19723-1:2025

Road vehicles - Liquefied natural gas (LNG) fuel systems - Part 1: Safety requirements
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ISO 19723-1:2025

Road vehicles - Liquefied natural gas (LNG) fuel systems - Part 1: Safety requirements

ISO 19723-1:2025

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 LNG according to the ISO 15403 series. It is 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 to the components in the LNG system which is 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 compressed natural gas (CNG) components covered by the ISO 15501 series.

SDO ISO: International Organization for Standardization
Document Number ISO 19723
Publication Date Not Available
Language en - English
Page Count 22
Revision Level
Supercedes
Committee ISO/TC 22/SC 41
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