ISO 15500-21:2023

Road vehicles — Compressed natural gas (CNG) fuel system components — Part 21: Discharge line closures

Publication date:   Feb 3, 2023

General information

90.92 Standard to be revised   Dec 22, 2024

ISO

ISO/TC 22/SC 41 Specific aspects for gaseous fuels

International Standard

43.060.40   Fuel systems

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Scope

This document specifies tests and requirements for discharge lines closures, a compressed natural gas (CNG) fuel system component 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 natural gas in accordance with the ISO 15403-1. It is not applicable 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.

Life cycle

NOW

PUBLISHED
ISO 15500-21:2023
90.92 Standard to be revised
Dec 22, 2024

REVISED BY

IN_DEVELOPMENT
ISO/CD 15500-21