BS ISO 11057:2011 BSI Standards Publication Air quality Test method for filtration characterization of cleanable filter media bsi. ..making excellence a habit. BSISO11057:2011 BRITISHSTANDARD National foreword This British Standard is the UK implementation of ISO 11057:2011. The UK participation in its preparation was entrusted to Technical Committee EH/2/1, Stationary source emission. 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. @BSI 2011 ISBN9780580660214 ICS 13.040.40 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 31May 2011. Amendments issued since publication Date Text affected BSISO11057:2011 iso INTERNATIONAL 11057 STANDARD First edition 2011-05-15 AirgualityTestmethodforfiltration characterizationofcleanablefiltermedia QualitedeI'air-Methoded'essai pourla caracterisationdelafiltration des filtres lavables Reference number ISO 11057:2011(E) ISO @ISO 2011 BS ISO 11057:2011 ISO 11057:2011(E) COPYRIGHTPROTECTEDDOCUMENT ISO2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56:CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2011 - All rights reserved BSISO11057:2011 ISO11057:2011(E) Contents Page Foreword iv Introduction 1 Scope. 2 Terms and definitions. 3 Gases and materials.. ..5 4 Principle. ...6 5 Standard reference apparatus and procedure.. 5.1 General ........ .6 5.2 Componentsofthestandardreferenceapparatus. 6 5.3 Operatingparametersforthetest.... 11 5.4 Measured parameters... .12 5.5 Test sequences.... 5.6 Testpreparationsand environment.. .13 5.7 Step-by-step procedures of the standard test ... .17 6 Procedureand filter mediafortesting of equivalent apparatus and selection of test 6.1 Procedure and filter media fortesting of equivalent apparatus with the standard reference apparatus.... ..18 6.2 Selection oftest houses.. 18 7 Processing of data and presentation of results... .19 7.1 Processing of data ... 7.2 Presentationofresults ..19 AnnexA (normative)Testapparatus. .24 AnnexB(informative)Otherinformationandconsiderations .28 Bibliography .30 @ ISO 2011 - All rights reserved ii BSISO11057:2011 ISO 11057:2011(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 International Electrotechnical Commission (IEC)on all matters of electrotechnical standardization International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 identifying any or all such patent rights. source emissions. iv @ ISO 2011-All rights reserved BSISO11057:2011 ISO11057:2011(E) Introduction the surface of the filter medium which is periodically removed in order to maintain the filtration process. With most filters in use at the time of publication, this is usually accomplished by injecting a pulse of compressed air from the clean-gas side, i.e. inside the filter bag or cartridge. The design service life of these filters is filters and cleaning systems as well as the design and selection of the filter