ISO INTERNATIONAL STANDARD 5764 IDF 108 Third edition 2009-05-01 Milk Determination of freezing point - Thermistor cryoscope method (Reference method) LaitDétermination du point de congelation Methode au cryoscope a thermistance (Méthode de référence) Reference numbers ISO 5764:2009(E) IDF108:2009(E) @ ISO and IDF 2009 IHS unde Not for Resale ISO 5764:2009(E) IDF 108:2009(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 address given below. COPYRIGHT PROTECTED DOCUMENT @ ISO and IDF 2009 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 copyright@iso.org E-mail info@fil-idf.org Web www.iso.org Web www.fil-idf.org Published in Switzerland ISO and IDF2009-All rights reserved I without license from IHS Not for Resale ISO 5764:2009(E) IDF 108:2009(E) Contents Page Foreword. iv Foreword. 1 Scope 2 Normative references 3 Terms and definitions 4 Principle. 5 Reagents 6 Apparatus. 7 Sampling... 8 Calibration ofthethermistorcryoscope 9 Preparation of test sample.... 9.1 Preparation.. 9.2 Sample condition.. 10 Procedure. 10.1 Preliminary checks 10.2 Routine calibration check.. 10.3 Determination... 11 Calculation and expression of results. 11.1 Calculation.. 11.2 Expression of results 12 12.1 Interlaboratory test 12.2 Repeatability... 12.3 Reproducibility. 13 Test report. AnnexA(informative)Interlaboratorytrialonbovinemilk. 9 AnnexB(informative)Interlaboratorytrialonrawovineandcaprinemilk.. Annex D (informative) Adjustment of the freezing point value used as the reference for genuine Bibliography. ii from IHS Not for Resa