BS IS0 19161-1:2020 BSl Standards Publication Geographic information Geodetic references Part 1: International terrestrial reference system (ITRS) bsi. BSISO19161-1:2020 BRITISH STANDARD Nationalforeword This British Standard is theUK implementation of IS019161-1:2020 The UK participation in its preparation was entrusted to Technical Committee IST/36, Geographic information. 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. TheBritish Standards Institution2020 Published by BSI Standards Limited 2020 ISBN9780580943478 ICS07.040;35.240.70 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 IS019161-1:2020 INTERNATIONAL ISO STANDARD 19161-1 First edition 2020-01-24 Geographic information Geodetic references - Part 1: International terrestrial reference system (ITRS) Informationgéographique-References geodésiques- Partie1:Systeme international de reference terrestre (ITRS) Reference number ISO 19161-1:2020(E) ISO @IS02020