ISO INTERNATIONAL STANDARD 1169 Second edition 2006-07-01 Zinc alloys Determination of aluminium content Titrimetric method Alliages de zinc- Dosage de I'aluminium - Methode titrimetrique Referencenumber ISO 1169:2006(E) @ ISO 2006 ISO 1169:2006(E) PDFdisclaimer 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 atrademarkof 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 ? ISO2006 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 2006 - All riahts reserved ISO1169:2006(E) Contents Page Foreword. 1 Scope 2 Normative references 3 Terms and definitions 4 Principle... 5 Reagents. 6 Apparatus . Sampling ... 8 Procedure. 9 Calculation and expression of results. 10 Test report. Annex A (informative) Additional information on international cooperative tests Annex B (informative) Graphical representation of precision data .. "ahts reserved ili ISO 1169:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2 The main task of technical committees is to prepare International Standards. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 1169 was prepared by Technical Committee ISO/TC 18, Zinc and zinc alloys, Subcommittee SC 1, Methods of sampling and analysis of zinc and zinc alloys. This second edition cancels and replaces the first edition (isO 1169:1975), which has been technically revised Determination of aluminium in zinc alloys Titrimetric method. @ ISO 2006 - All riahts reserved ISO 1169:2006(E) INTERNATIONAL STANDARD Zinc alloys Determination of aluminium content Titrimetric method 1 Scope This International Standard specifies a titrimetric method for the determination of aluminium in zinc alloys. It is applicable to the products specified in IsO 301. It is suitable for the determination of aluminium contents (mass fractions) between 3 % and 30 %. Normative references 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 (including any amendments) applies. Iso 301, Zinc alloy ingots intended for casting Iso 5725-1, Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions Iso5725-2,Accuracy (truenessand precision)ofmeasurementmethodsandresults—Part2:Basicmethod for the determination of repeatability and reprod