ISO INTERNATIONAL STANDARD 10349-5 First edition 1992-12-15 Photography - Photographic-grade chemicals - Test methods Part 5: Determination of heavy metals and iron content Photographie Produits chimiques de qualité photographique Méthodes d'essai Partie 5: Determination des teneurs en metaux lourds et en fer Referencenumber ISO10349-5:1992(E) Copyright International Organization for Standardizatior No reproduction or networking permited without license from IHS Not for Resale IS010349-5:1992(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 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) on all 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 10349-5 was prepared by Technical Committee ISO/TC42,Photography. ISO 10349 consists of the following parts, under the general title Pho- tography - Photographic-grade chemicals Test methods: Part 1: General Part 2: Determination of matter insoluble in water Part 3: Determination of matter insoluble in ammonium hydroxide :solution Part 4: Determination of residue after ignition Part 5: Determination of heavy metals and iron content Part 6:Determination of halide content Part 7: Determination of alkalinity or acidity Part 8: Determination of volatile matter -Part 9:Reaction to ammoniacal silver nitrate -Part 10:Determination of sulfide content ISO1992 All rights reserved. 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 per- mission in writing from the publisher. nternational Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland Not for Resale ISO 10349-5:1992(E) Part 11: Determination of specific gravity 一 Part 12: Determination of density ili Noreproductionrnetworking pemite withoutlicense from H Not for Resale