BS ISO 2028:2015 BSl Standards Publication Synthetic rubber latex - Preparation of dry polymer bsi. ..making excellence a habit: BS ISO 2028:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 2028:2015.It supersedes BS ISO 2028:1999 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRi/50, Rubber -Raw, natural and synthetic, including latex and carbonblack. 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 2015. Published by BSI Standards Limited 2015 ISBN9780580890949 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 June 2015. Amendments/corrigenda issued since publication Date Text affected BS ISO 2028:2015 ISO INTERNATIONAL STANDARD 2028 Fifth edition 2015-06-01 Synthetic rubber latex Preparation of dry polymer Latex de caoutchouc synthetique-Préparation du polymere sec Reference number IS0 2028:2015(E) TO @IS02015 BSISO2028:2015 IS0 2028:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISo's member body in the country of the requester. ISO copyright office Ch.de Blandonnet 8.CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii ISO 2015-Allrights reserved BS ISO 2028:2015 IS0 2028:2015(E) Contents Page Foreword iv 1 Scope .1 2 Normativereferences. .1 3 Principle .1 4 Reagents. .1 5 Apparatus. .2 6 Procedure. .3 6.1 General. 3 6.2 Styrene-butadiene (SBR) latices (of less than 55 % solids content) 3 6.3 Carboxylated (X-SBR and X-NBR) latices. 3 6.4 Nitrile (NBR) latices 4 6.5 Concentrated latices (more than 55 % solids content) 4 7 Report. 4 @ IS0 2015 - All rights reserved iii BSISO2028:2015 IS0 2028:2015(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also takepart in the work. ISo collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the Iso/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of Iso documents should be noted.This document was drafted in accordance with the editorial rules of the ISo/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.IsO shall not be held responsible for identifyingany or all suchpatentrights.Details of any patent rights identified during the development of the document will be in the Introduction and/or on the Iso list of patent declarations received (see wwwiso.org/patents) Any trade name used in this document is information given for the convenience of users and does not constituteanendorsement. For an explanation on themeaning of Is