ISO INTERNATIONAL STANDARD 9682-1 Second edition 2009-06-15 Iron ores Determination of manganese content - Part 1: Flame atomic absorption spectrometric method Minerais de fer- Dosage du manganese Partie 1: Methode par spectrometrie d'absorption atomique dans la flamme Reference number ISO 9682-1:2009(E) @ ISO 2009 py IHS under ted without license from IHS Not for Resale ISO 9682-1:2009(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 shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative 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. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHT PROTECTED DOCUMENT ISO2009 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 ISsO's 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 [email protected] Web www.iso.org Published in Switzerland Copyrgh Interatinal Oorganization for Standardization IsO2009-All rights reserved I without license from IHS Not for Resale ISO 9682-1:2009(E) Contents Page Foreword .iv 1 Scope 2 Normative references 3 Principle.. 4 Reagents. 5 Apparatus 6 Sampling and samples. 6.1 Laboratory sample . 6.2 Preparation of predried test samples..... 7 Procedure... 7.1 Number of determinations 7.2 Safety precautions ... 7.3 Test portion.. 7.4 Blank test and check test ... 7.5 Determination ... 7.5.1 Decomposition of the test portion. 7.5.2 Treatment of the test solution.. 7.5.3 Adjustment of the atomic absorption spectrometer.... 7.5.4 Atomic absorption measurements .... 8 Expression of results.. 8.1 Caiculation of mass fraction of manganese. 8.2 General treatment of results.. 8.2.1 Repeatability and permissible tolerance... 8.2.2 Determination of analytical result.. 8.2.3 Between-laboratories precision.. 8.2.4 Check for trueness.... .8 8.2.5 Calculation of final result.. 8.3 Oxide factor. 9 Test report. Annex A (normative) Flowsheet of the procedure for the acceptance of analytical values for test samples 11 Annex B (informative) Derivation of repeatability and permissible tolerance equations... 12 Annex C (informative) Precision data obtained by international analytical trials ... 13 Copyrght International Organizaionsandardizalonghts reserved ili Not for Resale