ISO INTERNATIONAL STANDARD 10700 First edition 1994-05-15 Steel and iron Determination of manganese content ---. Flame atomic absorption spectrometric method Aciersetfontes -Dosagedu manganese ---Méthode par spectrometrie d'absorption atomique dans la flamme ISO Reference number ISO10700:1994(E) No reproduction or networking permited without license from IHS ISO 10700:1994(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 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 (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approvai by at least 75 % of the member bodies casting a vote. International Standard ISO 10700 was prepared byTechnical Committee ISO/TC 17. Steel, Subcommittee SC 1, 'Methods of determination of chemicalcomposition. Annex A forms an integral part of this Internationai Standard. Annexes B and C are for information only. 1SO1994 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 the publisher. International OrganizationforStandardization CasePostale56·CH-1211Geneve20·Switzerland Printed in Switzerland Copyright Inte for Standardizatior No reproduction or networking permitted without license from IHS Not for Resale ISO 10700:1994(E) INTERNATIONAL STANDARD ISO Steel and iron Determination of manganese content -- Flame atomic absorption spectrometric method 1 Scope ISO 5725:1986, Precision of test methods -- Deter- mination of repeatability and reproducibility for a This International Standard specifies a flame atomic standard test method by inter-laboratory tests. absorption spectrometric method for the deter- mination of the manganese content in steel and iron. 3Principle The method is applicable to manganese contents be- tween 0,002 % (m/m) and 2,0 % (m/m). Dissolution of a test portion in hydrochloric and nitric acids followed by evaporation with perchloric acid until white fumes appear. Spraying of the solution into an air-acetylene flame. 2 Normative references Spectrometric measurement of the atomic absorption of the 279,5 nm spectral line emitted by a manganese The following standards contain provisions which, hollow cathode lamp. through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All standards 4 Reagents aresubjecttorevision,andpartiestoagreements based on this International Standard are encouraged During the analysis, unless otherwise stated, use only to investigate the possibility of applying the most re- reagents of recognized analytical grade and only grade cent editions of the standards indicated below. 2 water as specified in ISO 3696. Members of IEC and ISO maintain registers of cur- rently valid International Standards. 4.1 Pure iron, free from manganese or with a ISO 377-2:1989, Selection and preparation of samples known low manganese content. and test pieces of wrought steels - Part2:Samples for the determination of the chemical composition. 4.2 Hydrochloric acid, p about 1,19 g/m!. IsO 385-1:1984, Laboratory glassware- Burettes - Part 1: General requirements. 4.3 Hydrofluoric acid, p about 1,15 g/ml. IsO 648:1977, Laboratory glassware - One-mark 4.4 Nitric acid, p about 1,40 g/ml pipettes. IsO 1042:1983, Laboratory glassware -- One-mark 4.