ISO INTERNATIONAL STANDARD 16918-1 First edition 2009-01-15 Steel and iron Determination of nine elements by the inductively coupled plasma mass spectrometric method - Part 1: Determination of tin, antimony, cerium, lead and bismuth Acieretfer— Dosage deneuf élements par spectrometrie demasse avec plasma induit par haute frequence - Partie 1: Dosage de I'etain, de I'antimoine, du cerium, du plomb et du bismuth Reference number ISO 16918-1:2009(E) @ ISO 2009 HS under I without license from IHS Not for Resale ISO 16918-1:2009(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 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 COPYRIGHTPROTECTEDDOCUMENT @ ISO2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, isO'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 @ ISO 2009 - All rights reserved edwithoutlicense from IHS Not for Resale ISO 16918-1:2009(E) Contents Page Foreword 1 Scope 2 Normative references 3 Principle. 4 Reagents. 5 Apparatus. 6 Measurement specifications . 6.1 Minimum precision (RSD).... 6.2 Limit of detection (LOD) and limit of quantification (LOQ). 7 Sampling.. 8 Washing.. 9 Procedure... 9.1 Test portion.... 9.2 Blank test solution [blank sample solution] ... 9.3 Preparation of the test solution .... 10 Standard solutions ... 10.1 Multi-element standard solutions of the elements Sn, Sb, Pb and Bi 10.2 Standard solutions of the element Ce..... 6 11 Preparation of internal standard solutions ("internal standards") - Y, Rh and Lu.... 9 11.1 Preparation in polystyrene test tubes. 11.2 Preparation in volumetric flasks... 10 12 Calibration blank solution and calibration solutions .. 10 12.1 Preparation in volumetric flasks....... 10 12.2 Preparation in polystyrene test tubes. 11 13 Conditioning of the ICP-MS instrument ... 14 IcP-MS measurements. 14 15 Plotting of calibration graphs 16 Expression of results..... 16.1 Method of calculation. 15 16.2 Precision.. 15 17 Test report. 17 Annex A (informative) Additional information on the international co-operative tests. .18 Annex B (informative) Interferences in the determination of elements Sn, Sb, Ce, Pb and Bi using ICP.. MS.......... 28 Bibliography 29 Copyrght International Organization forstandardizalon ghts reserved ii nse from IHS Not for Resale