ISO INTERNATIONAL STANDARD 5739 IDF 107 Second edition 2003-01-15 Caseins and caseinates Determination of contents of scorched particles and of extraneous matter Caséines et caséinates - l Determinationdelateneurenparticules brulées et en matieres exogenes RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFI- CATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Reference numbers BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO- LOGICAL,COMMERCIAL AND USERPURPOSES. ISO 5739:2003(E) DRAFT INTERNATIONAL STANDARDS MAY ON IDF 107:2003(E) OCCASIONHAVETOBECONSIDEREDINTHE LIGHT OF THEIR POTENTIAL TO BECOME STAN- DARDS TO WHICH REFERENCE MAY BE MADE IN @ ISO and IDF 2003 from IHS Not for Resale ISO 5739:2003(E) IDF 107:2003(E) PDF disclaimer 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 parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by Iso member bodies 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 2003 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·Boulevard Auguste Reyers 80.B-1030 Brussels Tel. + 4122 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 yationagazaiSandardizatio @ISO and IDF2003-All rights reserved itted without license from IHS Not for Resale ISO 5739:2003(E) IDF 107:2003(E) Contents Page Forewordiso IV Foreword IDF Introductior 1 Scope. 2 Normative referen 3 Terms and definition 4 Principle 5 Reagents 6 Apparatus 7 Sampling 8 8.1 Preparation of test sample 8.2 Test portion .. 8.3 Determination 9 Evaluation and expression of results 9.1 Evaluation.. 9.2 Expression of results. 10 Precision 10.1 Repeatability 10.2 Reproducibility 11 Test report . Annex A (normative) Testing of filtering discs.... Annex B (normative) Preparation of standard discs of scorched particles 10 Bibliography. 12 ili se from IHS Not for Resale ISO 5739:2003(E) IDF 107:2003(E) Foreword ISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehas been established has the right to be represented on that committee. International organizations, governmental 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 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 5739liDF 107 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 5 It is b