BS IS0 2930:2017 BSl Standards Publication Rubber, raw natural Determination of plasticity retention index (PRI) bsi. BS ISO 2930:2017 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 2930:2017. It supersedes BS IS0 2930:2009, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/50, Raw materials (including latex) for use in the rubber industry. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @ The British Standards Institution 2017 Published by BSI Standards Limited 2017 ISBN 978 0 580 89101 4 ICS 83.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017. Amendments/corrigenda issued since publication Date Text affected BS ISO 2930:2017 INTERNATIONAL ISO STANDARD 2930 Fifth edition 2017-08 Rubber, raw natural Determination of plasticity retention index (PR) Caoutchouc naturel brut -Détermination de I'indice de rétention de plasticite (PRI) Reference number ISO 2930:2017(E) ISO @ ISO 2017