ISO INTERNATIONAL STANDARD 3750 Second edition 2006-06-01 Zinc alloys Determination of magnesium content Flame atomic absorption spectrometric method Alliagesdezinc-Dosagedumagnesium-Methodepar spectrometried'absorptionatomiquedanslaflamme Referencenumber ISO 3750:2006(E) @ISO2006 ed without license from IHS Not for Resale ISO3750:2006(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 accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the sofware products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO2006 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 at the address below or IsO's member body in the country of the requester. ISO copyright office Casepostale56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO2006-All rights reserved IHS unde No reproduction or networking permitted without license from IHS Not for Resale ISO3750:2006(E) Contents Page Foreword. 1 Scope 2 Normativereferences 3 Terms anddefinitions 4 Principle.. 5 Reagents. 6 Apparatus 7 Sampling... 8 Procedure 6 Calculationandexpressionofresults. 10 Testreport. AnnexA(informative)Additional informationon international cooperativetests. AnnexB(informative)Graphicalrepresentationofprecisiondata. ili se with IS license from IHS Not for Re ISO3750:2006(E) 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 interested in a subject for which a technical committee has been non-governmental,inliaisonwithlsO,alsotakepartinthework.IsOcollaboratescloselywiththe InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO3750waspreparedbyTechnicalCommitteeISO/TC18,Zinc andzinc alloys,SubcommitteeSC1, Methodsof sampling and analysis of zinc and zinc alloys. This second edition cancels and replaces the first edition (iSO 3750:1976), which has been technically revised Determinationofmagnesium inzincalloys-Flameatomicabsorptionspectrometricmethod. @ISO2006-Allrights reserved INTERNATIONALSTANDARD ISO3750:2006(E) ZincalloysDeterminationofmagnesiumcontentFlame atomic absorption spectrometric method Scope 1 This International Standard specifies a flame atomic absorption spectrometric method for the determination of magnesium in zinc alloys. It is applicable to the products specified in ISO 301 and ISO 752. It is suitable for the determination of magnesium contents (mass fractions) between 0,002 % and 0,08 %. Normativereferences 2 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(includinganyamendments)applies. ISO301,Zinc alloy ingots intendedforcasting ISO 752, Zinc ingots IsO5725-1,Accuracy(trueness and precision)of measurementmethods and results-Part1:General principles anddefinitions Iso5725