BS IS0 21903:2020 Refrigerated hydrocarbon fluids Dynamic measurement Requirements and guidelines for the calibration and installation of flowmeters used for liquefied natural gas (LNG) and other refrigerated hydrocarbon fluids BSISO21903:2020 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS021903:2020. The UK participation in its preparation was entrusted to Technical Committee CPI/30/5,Velocity and MassMethods. A list of organizations represented on this committee can be obtained on requestto its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. TheBritishStandards Institution2020 Published byBSI StandardsLimited 2020 ISBN9780580962035 ICS75.180.30 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 BS ISO 21903:2020 ISO INTERNATIONAL STANDARD 21903 First edition 2020-02 Refrigerated hydrocarbon fluids Dynamic measurement - Requirements and guidelines for the calibration and installation of flowmeters used for liquefied natural gas (LNG) and other refrigerated hydrocarbon fluids Hydrocarbures liquides refrigeres Mesurage dynamique - Exigences et lignesdirectrices pour I'étalonnage et I'installation de debitmetres utilises pour legaz naturel liquefie (GNL) et autres hydrocarbures liquides refrigeres Reference number IS021903:2020(E) ISO @IS02020