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1、BRITISH STANDARD BS EN ISO 1061:1999 Incorporating Corrigendum No. 1 Plastics Unplasticized cellulose acetate Determination of free acidity The European Standard EN ISO 1061:1999 has the status of a British Standard ICS 83.080.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
2、 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 1061:1999 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Comm
3、ittee and comes into effect on 15 October 1999 BSI 03-2001 ISBN 0 580 35107 6 National foreword This British Standard is the English language version of EN ISO 1061:1999. It is identical with ISO 1061:1990. This British Standard supersedes BS 2782-4 method 459A:1991 which is withdrawn. The UK partic
4、ipation in its preparation was entrusted to Technical Committee PRI/82, Thermoplastic materials, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC St
5、andards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “
6、International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance wi
7、th a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related interna
8、tional and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, page ii, pages 1 and 2, the annex ZA page and a back cover. The BSI copyright notice dis
9、played in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 10819 Corr. No. 1 March 2001Addition of supersession details to national foreword Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolle
10、d Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00
11、:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon N
12、ov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 1061:1999 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body res
13、ponsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest ame
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19、ntact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardiz
20、ation bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude
21、 the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:35:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI