ISO-15885-2002.pdf
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1、 Reference numbers ISO 15885:2002(E) IDF 184:2002(E) ISO and IDF 2002 INTERNATIONAL STANDARD ISO 15885 IDF 184 First edition 2002-11-15 Milk fat Determination of the fatty acid composition by gas-liquid chromatography Matires grasses du lait Dtermination de la composition des acides gras par chromat
2、ographie en phases gazeuse et liquide Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:23:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15885
3、:2002(E) IDF 184:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes 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. I
4、n downloading this file, parties accept therein the responsibility of not infringing Adobes 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 P
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6、, please inform the ISO Central Secretariat at the address given below. ISO and IDF 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without per
7、mission in writing from either ISO or IDF at the respective address below. ISO copyright office International Dairy Federation 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
8、733 04 13 E-mail copyrightiso.org E-mail infofil-idf.org Web www.iso.org Web www.fil-idf.org Published in Switzerland ii ISO and IDF 2002 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001
9、 Not for Resale, 04/22/2007 08:23:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15885:2002(E) IDF 184:2002(E) ISO and IDF 2002 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards
10、bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizat
11、ions, 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 th
12、e ISO/IEC 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
13、the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15885IDF 184 was prepared by Technical Committee
14、ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products, and the International Dairy Federation (IDF), in collaboration with AOAC International. It is being published jointly by ISO and IDF and separately by AOAC International. Copyright International Organization for Standardization Pro
15、vided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:23:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15885:2002(E) IDF 184:2002(E) iv ISO and IDF 2002 All rights reserved Foreword IDF (the International D
16、airy Federation) is a worldwide federation of the dairy sector with a National Committee in every member country. Every National Committee has the right to be represented on the IDF Standing Committees carrying out the technical work. IDF collaborates with ISO and AOAC International in the developme
17、nt of standard methods of analysis and sampling for milk and milk products. Draft International Standards adopted by the Action Teams and Standing Committees are circulated to the National Committees for voting. Publication as an International Standard requires approval by at least 50 % of IDF Natio
18、nal Committees casting a vote. ISO 15885IDF 184 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products, and the International Dairy Federation (IDF), in collaboration with AOAC International. It is being published jointly by ISO and IDF and separately
19、 by AOAC International. All work was carried out by the Joint ISO/IDF/AOAC Action Team, Fat, of the Standing Committee on Main Components in Milk, under the aegis of its project leader, Dr F. Ulberth (AT). Copyright International Organization for Standardization Provided by IHS under license with IS
20、O Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:23:13 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 15885:2002(E) IDF 184:2002(E) ISO and IDF 2002 All rights reserved 1 Milk fat Determination of the fatty acid comp
21、osition by gas- liquid chromatography 1 Scope This International Standard specifies a method for the determination of the fatty acid composition of milk fat and fat obtained from dairy products. 2 Normative references The following referenced documents are indispensable for the application of this d
22、ocument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO14156IDF 172, Milk and milk products Extraction methods for lipids and liposoluble compounds ISO 15884IDF 182, Milk fat Preparat
23、ion of fatty acid methyl esters 3 Terms and definitions 3.1 fatty acid composition of milk fat mass fraction of individual fatty acids determined by the procedure specified in this International Standard NOTE The fatty acid composition of milk fat (as grams of individual free acids) per 100 g of tot
24、al fatty acids (free acids) is expressed as a mass fraction in percent. 4 Principle Fatty acid methyl esters (FAME) of milk fat are prepared by transesterification. They are separated and determined by capillary gas-liquid chromatography. Individual FAME are quantified by reference to a milk fat of
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