bsi. ...making excellence a habit Inspiring trust foramore resilient world 需要更多标准请联系 wechat: wpwyq310 BSIS0 4659:2020 BSl Standards Publication Styrene-butadiene rubber (carbon black or carbon black and oil masterbatches) Evaluation procedure bsi. BSISO4659:2020 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS0 4659:2020. It supersedes BSIS0 4659:2014, which is withdrawn. The UK participation in its preparation was entrusted to Technical CommitteePRI/50,Rawmaterials (includinglatex)foruseinthe rubber industry. A list of organizations represented on this committee canbe obtained on request to its committee manager. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correct application. @TheBritish Standards Institution2020 Published by BSI Standards Limited 2020 ISBN9780539121834 ICS 83.060 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 on31August 2020. Amendments/corrigendaissued sincepublication Date Textaffected