ISO 19723-2:2025
ISO 19723-2:2025 Road vehicles — Liquefied natural gas (LNG) fuel systems — Part 2: Test methods
CDN $125.00
This publication was last reviewed and confirmed in 2025.
Road vehicles — Liquefied natural gas (LNG) fuel systems — Part 2: Test methods
Description
This document specifies performance and general test methods for liquefied natural gas fuel system components 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 gas according to the ISO 15403 series. It is applicable to original-production and converted vehicles.
This document is only applicable on the components in the “liquefied natural gas (LNG) system” meaning an assembly of components (tanks, valves, flexible fuel lines, etc.) 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 ISO 15501.
NOTE All references to pressures, given in megapascals and bar (1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2) are considered gauge pressures, unless otherwise specified.
Edition
2
Published Date
2026-06-18
Status
PUBLISHED
Pages
11
Language
English
Format
Secure PDF
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Abstract
This document specifies performance and general test methods for liquefied natural gas fuel system components 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 gas according to the ISO 15403 series. It is applicable to original-production and converted vehicles.
This document is only applicable on the components in the "liquefied natural gas (LNG) system" meaning an assembly of components (tanks, valves, flexible fuel lines, etc.) 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 ISO 15501.
NOTE All references to pressures, given in megapascals and bar (1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2) are considered gauge pressures, unless otherwise specified.
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