BS IS0 15500-4:2020 BSl Standards Publication Road vehicles Compressed natural gas (CNG) fuel system components Part 4: Manual valve bsi. BS ISO 15500-4:2020 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 15500-4:2020. It supersedes BSIS0 15500-4:2012+A1:2016, whichis withdrawn. The UK participation in its preparation was entrusted to Technical Committee GSE/40, Gas supply equipment for natural gas vehicles. A list of organizations represented on this committee can be obtained on requestto its committeemanager. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correct application. @TheBritishStandardsInstitution2020 Published byBSIStandardsLimited2020 ISBN9780539012101 ICS 43.060.40 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Textaffected BSIS015500-4:2020 INTERNATIONAL ISO STANDARD 15500-4 Third edition 2020-11-13 Road vehicles Compressed natural gas (CNG) fuel system components - Part 4: Manual valve Vehicules routiers - Composants des systemes de combustible gaz naturel comprimé (GNC) Partie4:Valvemanuelle Reference number IS0 15500-4:2020(E) ISO @ISO 2020