ISO/TS TECHNICAL SPECIFICATION 9941 IDF/RM 160 Second edition 2005-06-15 Milk and canned evaporated milk - Determination of tin content - Spectrometric method Lait et lait concentré non sucre en boite Determination de la teneur en étain Méthode spectrométrique Reference numbers ISO/TS 9941:2005(E) IDF/RM 160:2005(E) Copyright International Organization for Standardization @ ISO and IDF 2005 Not for Resale ISO/TS 9941:2005(E) IDF/RM160:2005(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 2005 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. + 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 yemainagazainandardizato @ ISO and IDF 2005 - All rights reserved itted without license from IHS Not for Resale ISO/TS 9941:2005(E) IDF/RM160:2005(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Principle. 5 Reagents 6 Apparatus 7 Sampling. 8 Preparation of test sample.. 9 Procedure .... 9.1 Test portion and pretreatment. 9.2 Mineralization ..... 9.3 Colour development ... 9.4 Blanktest... 9.5 Preparation of the calibration graph.. 9.6 Checkontinlosses. 9.7 Spectrometric measurements 9.8 Number of determinations ... 10 Calculation and expression of results. 10.1 Calculation.. 10.2 Expression of results 11 Test report Bibliography CopyrightIntematinalOganzanfrsandadiza5All rightsreserved ii Not for Resale ISO/TS 9941:2005(E) IDF/RM 160:2005(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards ISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehas 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. 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. 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 publication if it is approved by 2/3 of the members of the committee casting a vote. An ISO/PAS or ISO/TS is reviewed afte