ISO INTERNATIONAL STANDARD 13311 First edition 1997-08-01 Iron ores --- Determination of lead content Flame atomic absorption spectrometric method Minerais de fer-Dosage du plomb -Methode par spectrometrie d'absorptionatomique dans laflamme This material is reproduced from Iso documents under International Organization for Standardization (IsO) Copyright License number IHS/icC/1996. Not for resale. No part of these Iso documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consentofISO(Casepostale56,1211Geneva20,Switzerland,Fax+4122 734 10 79), IHS or the Iso Licensor's members. ISo Referencenumber ISO 13311:1997(E) No reproduction or networking permited without license from IHS Not for Resale ISO 13311:1997(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 collaborates closely with the International Electrotechnical Commission (IEC) onall 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 approval by at least 75 % of the member bodies casting a vote. International Standard ISO 13311 was prepared by Technical Committee ISO/TC 102, Iron ores, Subcommittee SC 2, Chemical analysis. Together with ISO 13310, it cancels and replaces ISO 8753:1987, of which it constitutes a technical revision. Annex A forms an integral part of this International Standard. Annexes B and C are for information only. @ISO1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced microfilm, without permission in writing from the publisher. International OrganizationforStandardization Case postale 56 : CH-1211 Geneve 20· Switzerland Internet [email protected] X.400 C=ch; a=400net; p=iso; 0=isocs; S=central Printed in Switzerland i nal Organization for Standardization No reproduction or networking permited without license from IHS Not fr Resale INTERNATIONAL STANDARD @ISO ISO13311:1997(E) Iron ores - Determination of lead content -- Flame atomic absorption spectrometric method WARNING - This International Standard may involve hazardous materials, operations and equipment. This International Standard does not purport to address all of the safety issues associated with its use. It is the responsibilityof theuserto applicability of regulatory limitations prior to use. 1 Scope This International Standard specifies a flame atomic absorption spectrometric method for the determination of the leadcontentof ironores This method is applicable to lead contents between 0,001 % (m/m) and 0,5 % (m/m) in natural iron ores, iron ore concentrates and agglomerates, including sinter products. 2 Normative references InternationalStandard.Atthetimeofpublication,theeditionsindicatedwerevalid.Allstandardsaresubjectto revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IsO 648:1977, Laboratory glassware - One-mark pipettes. Iso 1042:1983, Laboratory glassware One-mark volumetric flasks. ISO 3081:1986, Iron ores - Increment sampling - Manual method. IsO 3082:1987, Iron ores--Increment sampling and samplepreparation-Mechanicalmethod. Iso3083:1986,lronores-Preparationofsamples-Manualmethod. IsO 7764:1985