ISO-10540-3-2002.pdf
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1、 Reference number ISO 10540-3:2002(E) ISO 2002 INTERNATIONAL STANDARD ISO 10540-3 First edition 2002-12-01 Animal and vegetable fats and oils Determination of phosphorus content Part 3: Method using inductively coupled plasma (ICP) optical emission spectroscopy Corps gras dorigines animale et vgtale
2、 Dtermination de la teneur en phosphore Partie 3: Mthode par spectromtrie dmission optique avec plasma induit par haute frquence Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 0
3、8:16:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10540-3:2002(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 emb
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6、blem relating to it is found, please inform the Central Secretariat at the address given below. ISO 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 microf
7、ilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 200
8、2 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 08:16:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10540-3:2002(E) ISO 2
9、002 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 International Standards is normally carried out through ISO technical committees. Each member body intereste
10、d 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 liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Com
11、mission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the techni
12、cal 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 drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO sh
13、all not be held responsible for identifying any or all such patent rights. ISO 10540-3 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11, Animal and vegetable fats and oils. ISO 10540 consists of the following parts, under the general title Animal and vegetable fats an
14、d oils Determination of phosphorus content: Part 1: Colorimetric method Part 2: Method using graphite furnace atomic absorption spectrometry Part 3: Method using inductively coupled plasma (ICP) optical emission spectroscopy Copyright International Organization for Standardization Provided by IHS un
15、der license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:16:36 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical St
16、andards 1/9972545001 Not for Resale, 04/22/2007 08:16:36 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 10540-3:2002(E) ISO 2002 All rights reserved 1 Animal and vegetable fats and oils Determination of phosphorus content Part 3: Method using ind
17、uctively coupled plasma (ICP) optical emission spectroscopy 1 Scope This part of ISO 10540 specifies a method for the quantification of phosphorus in oil, which is limited to oils with low phosphorus content, without any turbidity or visible sediment. Depending on the dilution solvent used, most typ
18、es of vegetable oils can be analysed (crude, degummed, refined, bleached, deodorized and hardened oils) and nearly all types of lecithins and phosphatides. This method is only suitable when phosphorus is present in a solubilized form. When it is present as fine particles, such as bleaching earth, IC
19、P-OES analysis results in poor recovery as a result of nebulization and atomization problems. The only suitable non-ashing direct method for these samples is graphite furnace atomic absorption spectrometry. ISO 10540-1 is the reference (colorimetric) method for the determination of the phosphorus co
20、ntent in fats and oils. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IS
21、O 661, Animal and vegetable fats and oils Preparation of test sample 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 phosphorus content dissolved phosphorus measured according to the method specified in this part of ISO 10540 NOTE It is measu
22、red in milligrams per kilogram. 4 Principle Solvent-diluted vegetable oils are analysed for phosphorus by direct aspiration. Liquid samples are nebulized and carried into the excitation source by a flowing gas. Atoms are quantified by measuring the specific emission lines produced by atoms decaying
23、from high energy levels. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:16:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10540-3:2002(E) 2
24、ISO 2002 All rights reserved 5 Reagents Use only reagents of recognized analytical grade, unless otherwise specified. 5.1 Butanol. 5.2 Kerosene. 5.3 Xylene. 5.4 Standard element, present in solution as an organic soluble material1). 5.5 Base oil (Base 20 or Base 75 Oil)1), used to check the blank oi
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