ISO/TS TECHNICAL SPECIFICATION 26844 IDF/RM 215 First edition 2006-11-15 Milk and milk products Determination of antimicrobial residues Tube diffusion test Lait et produits laitiersDétermination de residus antimicrobiens- Testdedisséminationentube Reference numbers ISO/TS 26844:2006(E) So IDF/RM 215:2006(E) @ ISO and IDF 2006 IHS under Not for Resale ISO/TS 26844:2006(E) IDF/RM 215:2006(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. Neither the ISo Central Secretariat nor the IDF accepts any liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation and IDF national committees. In the unlikely event that a problem relating to it is found, please inform the ISO Central Secretariat at the address given below. @ ISO and IDF 2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, address below. ISO copyright office International DairyFederation Case postale 56 CH-1211 Geneva 20 Diamant Building XBoulevard Auguste Reyers 80 ×B-1030 Brussels Tel. + 41 22 749 01 11 Tel. + 32 2 733 98 88 Fax + 41 22 749 09 47 Fax + 32 2 733 04 13 E-mail [email protected] E-mail [email protected] Web www.iso.org Web www.fil-idf.org Published in Switzerland @ ISO and IDF 2006 - All rights reserved ed without license from IHS Not for Resale ISO/TS 26844:2006(E) IDF/RM215:2006(E) Contents Page Foreword. Foreword. 1 Scope 2 Normative references. 3 Terms and definitions.. 4 Principle...... 5 Test organism, culture media, standard solutions and control samples 6 Apparatusandglassware.. 7 Sampling... 8 Preparation of test sample.. 9 Procedure .. 9.1 Control samples 9.2 Test tube preparation. 9.3 Incubation..... 9.4 Interpretatior 10 Confirmation (optional).. 10.1 General. 10.2 Presumptive confirmation of beta-lactams 10.3 Presumptive confirmation of sulfonamides 10.4 Confirmation of other inhibitors.. 11 Expressionofresults 12 Precision 9 13 Test report 9 AnnexA(informative)Datafromcollaborativestudies 10 Annex B (informative) Preparation of test-organism suspension.. 11 Bibliography 13 ii se from IHS Not for Resale ISO/TS 26844:2006(E) IDF/RM215:2006(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards ISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehas been established has the right to be represented on that committee. International organizations, governmenta and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the 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. The main task of technical committees is to prepare International Standards. Draft International Standards adoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.Publicationasan International Standard requires approval by at least 75 % of the member bodies casting a vote. technical committee may decide to publish other types of normative document: an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an IsO working group and is accepted for publication if it is approved by more than 50 % of the members of the parent committee casting a vote; an IsO Technical Specification (isO/TS) represents an agreement between the members of a technical committee and is accepted for