ISO INTERNATIONAL STANDARD 3892 Second edition 2000-06-01 Conversion coatings on metallic materials Determination of coating mass per unit area Gravimetric methods Couches de conversion sur matériaux métalliques - Détermination de la masse de revetement par unite de surface - Méthodes gravimétriques Reference number ISO 3892:2000(E) ISO @ ISO 2000 ted without license from IHS Not for Res-ale ISO 3892:2000(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 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 @ ISO2000 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 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 22 734 10 79 E-mail copyright@iso.ch Web www.iso.ch Printed in Switzerland @ IsO 2000 - All rights reserved ed without license from IHS Not for Res-ale ISO 3892:2000(E) Contents Page Foreword. .iv 1 Scope 2 Apparatus 3 Test pieces 4 Reagents and procedures... 4.1 General... 4.2 Phosphate coatings on iron and steel. 4.3 Phosphate coatings on zinc and cadmium.... 4.4 Crystalline phosphate coatings on aluminium and its alloys. 4.5 Chromate coatings on zinc and cadmium ... 4.6 Chromate and amorphous phosphate coatings on aluminium and its alloys 5 Expression of results . 5.1 Caiculation.... 5.2 Measurement uncertainty ii CoyightIntenaganfr sdadzaoved se from IHS Not for Res