ISO-5536-2002.pdf
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1、 Reference numbers ISO 5536:2002(E) IDF 23:2002(E) ISO and IDF 2002 INTERNATIONAL STANDARD ISO 5536 IDF 23 First edition 2002-11-01 Milk fat products Determination of water content Karl Fischer method Produits base de matire grasse laitire Dtermination de la teneur en eau Mthode de Karl Fischer Copy
2、right International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:37:07 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5536:2002(E) IDF 23:2002(E) PDF disclaimer This
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5、ative 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
6、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 permission in writing from either ISO or IDF at
7、 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 2 733 04 13 E-mail copyrightiso.ch E-mail info
8、fil-idf.org Web www.iso.ch Web www.fil-idf.org Printed 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 Not for Resale, 04/22/2007 08:37:07 MDTNo repro
9、duction or networking permitted without license from IHS -,-,- ISO 5536:2002(E) IDF 23:2002(E) ISO and IDF 2002 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing
10、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 organizations, governmental and non-governmental, in liaiso
11、n 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/IEC Directives, Part 3. The main task of tec
12、hnical 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. Attention is dra
13、wn 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 5536IDF 23 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk an
14、d 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 Provided by IHS under license with ISO Licensee=NASA Te
15、chnical Standards 1/9972545001 Not for Resale, 04/22/2007 08:37:07 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5536:2002(E) IDF 23:2002(E) iv ISO and IDF 2002 All rights reserved Foreword IDF (the International Dairy Federation) is a worldwide federation of the dair
16、y 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 development of standard methods of analysis and sampling for mi
17、lk 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 National Committees casting a vote. ISO 5536IDF 23 was prepared
18、 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 by AOAC International. All work was carried out by the Join
19、t ISO/IDF/AOAC Action Team, Water, under the aegis of its project leader, Mr G.J. van Beutick (NL). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:37:07 MDTNo reproduction or
20、 networking permitted without license from IHS -,-,- ISO 5536:2002(E) IDF 23:2002(E) ISO and IDF 2002 All rights reserved v Introduction This International Standard describes a manual titration although this technique will now outdated. In principle, three methods of endpoint detection are available
21、: a visual endpoint detection as described in this International Standard; a photometric technique using a photometer for the endpoint detection using the same procedure as described in this International Standard; and an electrical endpoint detection using automated titration apparatus. A prelimina
22、ry study is already ongoing to introduce the more modern automated technique into this International Standard and also to include a replacement for the toxic reagents. When the preliminary study has reached its goals, this will lead to revision of this International Standard. Copyright International
23、 Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:37:07 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by I
24、HS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:37:07 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 5536:2002(E) IDF 23:2002(E) ISO and IDF 2002 All rights reserved 1 Milk fat products Deter
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